subject:(Freshwater)

University of Johannesburg

1. Austin, Amanda. Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations.

Degree: 2011, University of Johannesburg

URL: http://hdl.handle.net/10210/3599

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M.Sc.

The Bushveld smallscale yellowfish, Labeobarbus polylepis (Boulenger, 1907), is an ecologically, socially and economically important species. These indigenous freshwater fish are found above an… (more)

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M.Sc.

The Bushveld smallscale yellowfish, Labeobarbus polylepis (Boulenger, 1907), is an ecologically, socially and economically important species. These indigenous freshwater fish are found above an altitude of 600m, and occur in the Inkomati and Phongolo River Systems and the southern tributaries of the Limpopo River System. In the past, it was suspected that morphological differences exist between the different L. polylepis populations, due to the occurrence of the rubberlip formation of individuals from the Elands River. Specimens of five L. polylepis populations were collected from the Phongolo, Assegaai, Elands and Komati rivers and Ngodwana Dam, Mpumalanga, South Africa. A L. natalensis population was collected from the Umvoti River and used as an out-group. Nine meristic counts and 46 morphometric measurements were taken. The measurements were changed into percentage ratios based on the fork length of each individual. The data was statically analysed and includes Multidimensional scaling techniques (MSD’s) and Principle Component Analysis (PCA’s). Statistical analysis split the five populations into three groups. The one group consists of fish from the Phongolo and Assegaai rivers, the second group consists of fish from the Elands River and Ngodwana Dam and the third group is mainly Komati River fish. The third group is the only group that does not overlap with any other group. There were morphological differences between the groups, but they were not significant. The L. natalensis population is morphologically similar to L. polylepis populations obtained from the Phongolo and Assegaai rivers. Twenty enzyme coding loci in two L. polylepis populations from the Phongolo and Elands rivers were analysed by horizontal starch gel-electrophoresis. Electrophoretic analysis of heart, muscle and liver tissue samples revealed genetic variation at 15% (Elands River) and 35% (Phongolo River) of the protein coding loci studied. Average heterozygosity values based on Hardy-Weinberg expectation were 0.019 (Elands River) and 0.059 (Phongolo River), with a genetic distance value of 0.004 between these populations.

Subjects/Keywords: Freshwater fish parasites; Freshwater fish morphology

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APA (6^th Edition):

Austin, A. (2011). Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/3599

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Austin, Amanda. “Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations.” 2011. Thesis, University of Johannesburg. Accessed March 04, 2021. http://hdl.handle.net/10210/3599.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Austin, Amanda. “Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations.” 2011. Web. 04 Mar 2021.

Vancouver:

Austin A. Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations. [Internet] [Thesis]. University of Johannesburg; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10210/3599.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Austin A. Aspects of the morphology, parasite host specificity and genetics of selected Labeobarbus polylepis populations. [Thesis]. University of Johannesburg; 2011. Available from: http://hdl.handle.net/10210/3599

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

2. Cohen, Jillian. Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians.

Degree: PhD, Natural Resources, 2013, Cornell University

URL: http://hdl.handle.net/1813/34029

► The vast majority of plant material becomes detritus, and in its 'afterlife' this plant litter is a critical resource for many aquatic organisms. I conducted… (more)

▼ The vast majority of plant material becomes detritus, and in its 'afterlife' this plant litter is a critical resource for many aquatic organisms. I conducted four experiments to improve our understanding of how changes in plant commu nities may affect aquatic organisms. In each experiment, I used larval anurans as a focal organism, since many studies show that larval anurans are sensitive to changes in litter inputs. All experiments were conducted in outdoor mesocosms containing plan t litter, microbes, algae, and tadpoles. In all cases, I predicted that as litter quality or quantity increased, tadpole performance - measured as survivorship, development rate, and body size would improve. In one experiment, I varied litter quantity a nd observed that tadpole development and size increased with litter quantity. In a second experiment, I examined how the presence of a predator affected tadpole performance. I predicted that predators would decrease tadpole performance, but that these ne gative effects would attenuate as litter quality increased. I found that tadpole survival and mass increased with litter quality but saw no apparent effects of predators. In a third experiment I collected soil from six different sites and created inocula for outdoor mesocosms to see whether tadpole performance would vary among inocula. Tadpoles developed faster and achieved greater body size when raised with higher quality litter, but I did not detect differences in tadpole performance among soil inocula. In a fourth experiment, I used litter from six plant species to create nine unique mixtures of three species each. I predicted that as plant functional diversity increased, tadpole performance would improve. I also predicted that tadpole performance wo uld improve as community-weighted mean (CWM) nitrogen and phosphorus increased and CWM lignin and phenolics decreased. I did not observe any differences in tadpole performance based on functional diversity, but found that tadpole performance improved as CWM nitrogen increased and CWM phenolics decreased. My work shows that plant litter quality is a consistent predictor of larval anuran performance, even when there are multiple plant species, predators, or variation in soil biota communities. Advisors/Committee Members: Blossey, Bernd (chair), Blossey, Bernd (chair), Rudstam, Lars Gosta (committee member), Maerz, John C. (committee member), Nelson, Eric Bronson (committee member), Yavitt, Joseph B (committee member), Allred, Shorna Broussard (committee member).

Subjects/Keywords: amphibian; plant; freshwater

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APA (6^th Edition):

Cohen, J. (2013). Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/34029

Chicago Manual of Style (16^th Edition):

Cohen, Jillian. “Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians.” 2013. Doctoral Dissertation, Cornell University. Accessed March 04, 2021. http://hdl.handle.net/1813/34029.

MLA Handbook (7^th Edition):

Cohen, Jillian. “Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians.” 2013. Web. 04 Mar 2021.

Vancouver:

Cohen J. Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians. [Internet] [Doctoral dissertation]. Cornell University; 2013. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1813/34029.

Council of Science Editors:

Cohen J. Using Functional Traits To Understand How Changes In Plant Species Composition Will Affect Larval Amphibians. [Doctoral Dissertation]. Cornell University; 2013. Available from: http://hdl.handle.net/1813/34029

University of Cape Town

3. Brill, Gregg. Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area.

Degree: Image, Environmental and Geographical Science, 2017, University of Cape Town

URL: http://hdl.handle.net/11427/27447

► Freshwater ecosystems and their associated landscape features found in developing cities and urban protected areas are essential components of urban social-ecological systems providing city residents… (more)

▼ Freshwater ecosystems and their associated landscape features found in developing cities and urban protected areas are essential components of urban social-ecological systems providing city residents with cultural, provisioning and regulating services, all of which hold value. Understanding these values requires overcoming conceptual and methodological challenges so that the multi-dimensional nature, relating to the varying values, benefits, and trade-offs are understood. Understanding values, benefits and trade-offs is essential for ensuring informed and effective management of these services and the landscapes that provide them. This requires the development of tools and methods to predict how changes in land-use and management practices might affect the provision of such services. This study contributes to both the methodological and empirical literature by developing integrated and multidisciplinary approaches to assessing the beneficiaries of freshwater ecosystem services in an urban context and recognising the ecological, social and economic values assigned to ecosystem services over multiple spatial and temporal scales. The aim of this thesis was to assess how beneficiaries, stakeholders and managers within a developing city context, recognise, value and manage the multiple diverse ecosystems services associated with freshwater ecosystems as provided by different landscape features originating in an urban protected area. This aim was achieved by establishing who the beneficiaries of freshwater ecosystem services are, uncovering the spatial and temporal relationships these beneficiaries have with landscape features, determining the nature of ecosystem service values, benefits, impacts and trade-offs as experienced by the different users, as well as analysing the management policies and practices associated with urban ES. Drawing on accumulated as well as existing data sets, newly developed methods and approaches were implemented in this study. This work was primarily undertaken in Table Mountain National Park and in Cape Town, South Africa. A comparative analysis of the perceptions of park managers toward ecosystem service governance and management was undertaken in Table Mountain National Park and in Tijuca National Park, in Rio de Janeiro, Brazil. Natural freshwater ecosystems (e.g. rivers), particularly when combined with built infrastructure (e.g. dams), provide highly valued features in landscapes, delivering multiple cultural services to city residents. Recreation, aesthetic and existence services were valued highest by respondents. People who live closer to the park use, and benefit from, the park's freshwater ecosystems more frequently than those living further away. Park visitors want ease of access in terms of distance to specific freshwater ecosystems, and then once there they want a diversity of activity options, such as recreation opportunities as well as places to reflect and meditate. The outcomes of the cultural-service study in this thesis have important management implications where insights… Advisors/Committee Members: Anderson, Pippin (advisor), O'Farrell, Patrick (advisor).

Subjects/Keywords: freshwater ecosystems services

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APA (6^th Edition):

Brill, G. (2017). Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area. (Thesis). University of Cape Town. Retrieved from http://hdl.handle.net/11427/27447

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Brill, Gregg. “Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area.” 2017. Thesis, University of Cape Town. Accessed March 04, 2021. http://hdl.handle.net/11427/27447.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Brill, Gregg. “Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area.” 2017. Web. 04 Mar 2021.

Vancouver:

Brill G. Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area. [Internet] [Thesis]. University of Cape Town; 2017. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11427/27447.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Brill G. Testing the water: How communities value, use, impact and manage water-related ecosystem services originating in an urban protected area. [Thesis]. University of Cape Town; 2017. Available from: http://hdl.handle.net/11427/27447

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Prajith, K K. Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man).

Degree: 2011, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/3090

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This thesis Entitled Application of Biofloc technology (BFT) In the Nursery Rearing and Farming of Giant Freshwater Prawn,Macrobrachium Rosenbergii(De Man). Aquaculture, rearing plants and animals… (more)

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This thesis Entitled Application of Biofloc technology (BFT) In the Nursery Rearing and Farming of Giant Freshwater Prawn,Macrobrachium Rosenbergii(De Man). Aquaculture, rearing plants and animals under controlled conditions is growing with an annual growth rate of 8.3% in the period 1970-2008 (FAO, 2010). This trend of growth is essential for the supply of protein-rich food for ever increasing world population. But growth and development of aquaculture should be in sustainable manner, preferably without jeopardizing the aquatic environment.In the present study, the application of BFT in the nursery rearing and farming ofgiant freshwater prawn, M. rosenbergii, is attempted. The result of the study is organised into eight chapters. In the first chapter, the subject is adequately introduced. Various types of aquaculture practices followed, development and status of Indian aquaculture, present status of freshwater pravm culture, BF T and its use for the sustainable aquaculture systems, theory of BFT based aquaculture practices, hypothesis, objective and outline of the thesis are described. An extensive review of literature on studies carried out so far on biofloc based aquaculture are given in chapter 2. The third chapter deals with the application of BFT in the primary nursery phase of freshwater prawn. Several workers suggested the need for an intermediate nursery phase in the culture system of freshwater prawn for the successful production. Thirty day experiment was conducted to study the effect of BFT on the water quality, and animal welfare under the various stocking densities. The study concluded that stocking finfishes in biofloc-based monoculture system of freshwater prawns has the potential of increasing total yield. Prawns having a higher commercial value than finfishes besides ensuring economic sustainability. Results showed that prawn yield and survival was better in catla dominated tanks. Based on the results of the study, it is recommended to incorporate 25% rohu and 75% catla in the biofloc-based culture system of giant freshwater prawns. The results of the present study also recommend to stock relatively larger catla for biofloc-based culture system. Fish production was also higher in the 100% catla tank. When catla was added in higher percentages it should ensured that the hiding objects in the culture ponds shall be used in order to reduce the chance of cannibalism among prawns. rohu and catla equally have the ability to harvest the biofloc, catla consumes the planktonic contributes in the floc whereas rohu grazed on the bacterial consortium suspended in the water column. In Chapter 8, recommendations and future research perspectives in the field of biofloc based aquaculture is presented.

School of Industrial Fisheries, Cochin University of Science and Technology

Cochin University of Science and Technology

Subjects/Keywords: Biofloc Technology; Freshwater prawn; Macrobrachillm rosenbergii (de Man); Indian aquaculture; Giant freshwater prawn; Freshwater aquaculture

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APA (6^th Edition):

Prajith, K. K. (2011). Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man). (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/3090

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prajith, K K. “Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man).” 2011. Thesis, Cochin University of Science and Technology. Accessed March 04, 2021. http://dyuthi.cusat.ac.in/purl/3090.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prajith, K K. “Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man).” 2011. Web. 04 Mar 2021.

Vancouver:

Prajith KK. Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man). [Internet] [Thesis]. Cochin University of Science and Technology; 2011. [cited 2021 Mar 04]. Available from: http://dyuthi.cusat.ac.in/purl/3090.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prajith KK. Apptication of Biofloc Technology (BFI) in Ihe nunery rearing and farming of giant freshwater prawn, Macrobrachillm rosenbergii (de Man). [Thesis]. Cochin University of Science and Technology; 2011. Available from: http://dyuthi.cusat.ac.in/purl/3090

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

5. Groenewald, Marinka. Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage.

Degree: 2012, University of Johannesburg

URL: http://hdl.handle.net/10210/4320

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M.Sc.

The water quality in the Vaal River system has deteriorated due to increasing industrial, mining and agricultural activities in the Vaal Dam and Vaal… (more)

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M.Sc.

The water quality in the Vaal River system has deteriorated due to increasing industrial, mining and agricultural activities in the Vaal Dam and Vaal River Barrage catchment areas. This study was undertaken to determine the water quality in the Vaal Dam, and three localities within the Vaal River Barrage reservoir (i.e. the Riviera Aquatic Club, Abrahamsrust Pleasure Resort and at the Barrage structure). The objectives of this study, was to determine the fish population species composition, evaluate the general health of the selected fish species and obtain site specific metal bioaccumulation data for each locality. Suggestions and proposals for future monitoring and management of these waterbodies were also made. Metereological information on the Vaal River Barrage area was supplied by Rand Water, as well as physical and chemical data of fixed localities, sampled fortnightly (January 1997 to September 1998). In addition, water samples were collected at the Vaal Dam and the three Vaal River Barrage localities mentioned above, during February, May, August and November 1997. These samples were analysed by the Chemistry Department of the Rand Afrikaans University in accordance with standard methods. The chemical and physical characteristics and metal concentrations (aluminium, cadmium, calcium, copper, iron, magnesium, manganese, nickel, strontium and zinc) of these separate sets of data were then compared with Rand Water's Raw Water Quality Criteria. The aluminium, ammonia, chromium, copper, dissolved organic carbon, fluoride, iron, lead, manganese, nitrate, sulphate, total hardness and turbidity variables did not comply with the recommended guideline values. No guideline levels for strontium are available, however. Sedimentation, turbidity, salination and eutrophication within the Vaal River system play an important role in the bioaccumulation of metals by benthic organisms. Metals that adsorb to sediment particles, through various processes, are generally more persistent and less mobile than those in the overlying water and pose a severe long-lasting threat to the aquatic environment. Generally, the highest metal concentrations (AI, Cd, Cu, Fe, Mn, Ni, Pb, Sr and Zn) in the sediment samples collected at the four localities and seasons, were found in the finer sediment classes (class D). The Riviera Aquatic Club locality had the highest overall concentrations of the metals analysed. The adult fish communities within the Vaal Dam and Vaal River Barrage were assessed, as it is believed that the fish community structure is indicative of environmental conditions. Adult Labeo capensis, Labeo umbratus, Cyprinus carpio, Clarias gariepinus, Barbus aeneus and Micropterus sa/moides, were collected (using gill nets) to determine the adult fish community composition and age. When compared with a study conducted by Mulder (1971), it is clear that Labeo capensis has remained the most abundant species within the system, but that Barbus aeneus has now been replaced by Labeo umbratus as the second most abundant species.…

Subjects/Keywords: Water quality bioassay; Bioaccumulation; Freshwater fish diseases; Freshwater fishes; Effect of metals on freshwater fishes

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APA (6^th Edition):

Groenewald, M. (2012). Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/4320

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Groenewald, Marinka. “Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage.” 2012. Thesis, University of Johannesburg. Accessed March 04, 2021. http://hdl.handle.net/10210/4320.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Groenewald, Marinka. “Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage.” 2012. Web. 04 Mar 2021.

Vancouver:

Groenewald M. Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10210/4320.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Groenewald M. Bioaccumulation of metals and the general health of fish from the Vaal Dam and Vaal River Barrage. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/4320

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rhodes University

6. Chutter, F M. Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches.

Degree: Faculty of Science, Zoology and Entomology, 1967, Rhodes University

URL: http://hdl.handle.net/10962/d1010499

► The studies on the Vaal River and its tributaries presented here, were carried out for a variety of reasons. Prominent among them were several of… (more)

Subjects/Keywords: Freshwater biology; Freshwater animals; Freshwater ecology

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APA (6^th Edition):

Chutter, F. M. (1967). Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1010499

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chutter, F M. “Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches.” 1967. Thesis, Rhodes University. Accessed March 04, 2021. http://hdl.handle.net/10962/d1010499.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chutter, F M. “Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches.” 1967. Web. 04 Mar 2021.

Vancouver:

Chutter FM. Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches. [Internet] [Thesis]. Rhodes University; 1967. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10962/d1010499.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chutter FM. Hydrobiological studies on the Vaal River and some of its tributaries, including an introduction to the ecology of Simulium in its lower reaches. [Thesis]. Rhodes University; 1967. Available from: http://hdl.handle.net/10962/d1010499

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

7. Brocksen, Robert W. Influence of competition on the food consumption and production of animals in laboratory stream communities.

Degree: MS, Fisheries, 1966, Oregon State University

URL: http://hdl.handle.net/1957/22221

Subjects/Keywords: Freshwater ecology

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APA (6^th Edition):

Brocksen, R. W. (1966). Influence of competition on the food consumption and production of animals in laboratory stream communities. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/22221

Chicago Manual of Style (16^th Edition):

Brocksen, Robert W. “Influence of competition on the food consumption and production of animals in laboratory stream communities.” 1966. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/22221.

MLA Handbook (7^th Edition):

Brocksen, Robert W. “Influence of competition on the food consumption and production of animals in laboratory stream communities.” 1966. Web. 04 Mar 2021.

Vancouver:

Brocksen RW. Influence of competition on the food consumption and production of animals in laboratory stream communities. [Internet] [Masters thesis]. Oregon State University; 1966. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/22221.

Council of Science Editors:

Brocksen RW. Influence of competition on the food consumption and production of animals in laboratory stream communities. [Masters Thesis]. Oregon State University; 1966. Available from: http://hdl.handle.net/1957/22221

Oregon State University

8. McNeil, William John. The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish.

Degree: MS, Fish and Game, 1956, Oregon State University

URL: http://hdl.handle.net/1957/21534

Subjects/Keywords: Freshwater fishes

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McNeil, W. J. (1956). The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/21534

Chicago Manual of Style (16^th Edition):

McNeil, William John. “The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish.” 1956. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/21534.

MLA Handbook (7^th Edition):

McNeil, William John. “The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish.” 1956. Web. 04 Mar 2021.

Vancouver:

McNeil WJ. The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish. [Internet] [Masters thesis]. Oregon State University; 1956. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/21534.

Council of Science Editors:

McNeil WJ. The influence of carbon dioxide and pH on the dissolved oxygen requirements of some fresh-water fish. [Masters Thesis]. Oregon State University; 1956. Available from: http://hdl.handle.net/1957/21534

Oregon State University

9. Whitmore, Cecil Marion. Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen.

Degree: MS, Fish and Game, 1957, Oregon State University

URL: http://hdl.handle.net/1957/21657

Subjects/Keywords: Freshwater fishes

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APA (6^th Edition):

Whitmore, C. M. (1957). Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/21657

Chicago Manual of Style (16^th Edition):

Whitmore, Cecil Marion. “Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen.” 1957. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/21657.

MLA Handbook (7^th Edition):

Whitmore, Cecil Marion. “Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen.” 1957. Web. 04 Mar 2021.

Vancouver:

Whitmore CM. Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen. [Internet] [Masters thesis]. Oregon State University; 1957. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/21657.

Council of Science Editors:

Whitmore CM. Avoidance reactions of some salmonid and centrarchid fishes to low concentrations of dissolved oxygen. [Masters Thesis]. Oregon State University; 1957. Available from: http://hdl.handle.net/1957/21657

Oregon State University

10. Mason, John Christopher. Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior.

Degree: PhD, Fisheries, 1966, Oregon State University

URL: http://hdl.handle.net/1957/22217

Subjects/Keywords: Freshwater ecology

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APA (6^th Edition):

Mason, J. C. (1966). Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/22217

Chicago Manual of Style (16^th Edition):

Mason, John Christopher. “Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior.” 1966. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/22217.

MLA Handbook (7^th Edition):

Mason, John Christopher. “Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior.” 1966. Web. 04 Mar 2021.

Vancouver:

Mason JC. Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior. [Internet] [Doctoral dissertation]. Oregon State University; 1966. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/22217.

Council of Science Editors:

Mason JC. Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior. [Doctoral Dissertation]. Oregon State University; 1966. Available from: http://hdl.handle.net/1957/22217

Oregon State University

11. Helland-Hansen, Erik Andreas. Stability of gravel at artificially created spawning beds in uncontrolled streams.

Degree: MS, Civil Engineering, 1971, Oregon State University

URL: http://hdl.handle.net/1957/46191

► Twenty-five gabion-type structures across the main stem and tributaries of the Siuslaw River in the Oregon Coastal Range, installed to expand the available spawning area… (more)

▼ Twenty-five gabion-type structures across the main stem and tributaries of the Siuslaw River in the Oregon Coastal Range, installed to expand the available spawning area for fish, were investigated for their ability to perform gravel control functions such as trapping bedload carried by the stream or holding gravel placed behind the structures. The merits of gravel trapping structures in the main stem Siuslaw River were found to depend largely on channel features in the reach at and above the structures. Factors favoring successful developments were: ample gravel supply, high bed roughness, wide straight reaches, and lateral stream bed slopes deflecting flood water from the structure. Among limiting factors were: the existence of pools immediately upstream of structures, deficient gravel supply, curving stream alignment, and unfavorable lateral stream bed slopes. Main stem reaches with an instantaneous peak discharge exceeding 100 cfs per foot width were found questionable for development. The controlling factors in the tributary streams were found to be approach velocities and stream features such as bedrock smoothness, approach slope, channel alignment, constrictions, lateral bed slope, plunge pools, and lengths of gravel beds. Careful placing of gravel to predetermined slopes was found not to be warranted, as the stream would rework the gravel according to local influences. Reaches where the flow was retarded without widening and reaches where high velocities occurred were found especially unfavorable for gravel stability. Flume studies with simulated gabions and full-size gravel were carried out to study incipient motion and scour from a gravel bed behind a gabion. Scour was found to take place from the upstream portion of the gravel bed, resulting in an adversely sloping bed there. Bed forms of standing-wave type, with changing wave location, were encountered when the flow was in the critical region; subsequent scour would wash the bed waves out. Gravel transport from apparently stable beds subjected to very low flow strengths verified that gravel transport is a statistical phenomenon and that the threshold of motion should include time of observation as a variable. Disruption of the gravel imbrication at the bed surface was found to encourage particle movement. The effect of buried perforated pipes o.n reducing bed siltation was investigated at the time of the stability experiments. No beneficial effect on the siltation pattern could be found when well-graded fine material was added to the flume. Advisors/Committee Members: Klingeman, Peter C. (advisor).

Subjects/Keywords: Freshwater ecology

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APA (6^th Edition):

Helland-Hansen, E. A. (1971). Stability of gravel at artificially created spawning beds in uncontrolled streams. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/46191

Chicago Manual of Style (16^th Edition):

Helland-Hansen, Erik Andreas. “Stability of gravel at artificially created spawning beds in uncontrolled streams.” 1971. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/46191.

MLA Handbook (7^th Edition):

Helland-Hansen, Erik Andreas. “Stability of gravel at artificially created spawning beds in uncontrolled streams.” 1971. Web. 04 Mar 2021.

Vancouver:

Helland-Hansen EA. Stability of gravel at artificially created spawning beds in uncontrolled streams. [Internet] [Masters thesis]. Oregon State University; 1971. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/46191.

Council of Science Editors:

Helland-Hansen EA. Stability of gravel at artificially created spawning beds in uncontrolled streams. [Masters Thesis]. Oregon State University; 1971. Available from: http://hdl.handle.net/1957/46191

Oregon State University

12. McLachlan, J. L. (Jack Lamont), 1930-. A field and culture study of some freshwater algae.

Degree: MA, Botany, 1954, Oregon State University

URL: http://hdl.handle.net/1957/52255

Subjects/Keywords: Freshwater algae

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APA (6^th Edition):

McLachlan, J. L. (Jack Lamont), 1. (1954). A field and culture study of some freshwater algae. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52255

Chicago Manual of Style (16^th Edition):

McLachlan, J. L. (Jack Lamont), 1930-. “A field and culture study of some freshwater algae.” 1954. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/52255.

MLA Handbook (7^th Edition):

McLachlan, J. L. (Jack Lamont), 1930-. “A field and culture study of some freshwater algae.” 1954. Web. 04 Mar 2021.

Vancouver:

McLachlan, J. L. (Jack Lamont) 1. A field and culture study of some freshwater algae. [Internet] [Masters thesis]. Oregon State University; 1954. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/52255.

Council of Science Editors:

McLachlan, J. L. (Jack Lamont) 1. A field and culture study of some freshwater algae. [Masters Thesis]. Oregon State University; 1954. Available from: http://hdl.handle.net/1957/52255

Oregon State University

13. Williams, Joshua E. (Joshua Everett). Habitat relationships of native and non-native fishes of the Willamette River, Oregon.

Degree: MS, Fisheries Science, 2014, Oregon State University

URL: http://hdl.handle.net/1957/49883

► The Willamette River flows north between the Cascade Mountains and Coast Range of western Oregon within a 29,728-km² basin. The fish community in the geologically… (more)

▼ The Willamette River flows north between the Cascade Mountains and Coast Range of western Oregon within a 29,728-km² basin. The fish community in the geologically young basin consists of 36 native species, but introductions of non-native fishes have added 33 additional species for a total of 69 fish species. During the summers of 2011-2013, fish distributions were sampled from the confluence of the McKenzie River downstream to the confluence of the Columbia River to assess: (1) fish community composition, (2) differences in community composition between mainstem river and slough habitats, and (3) relationships between native and non-native fish species and physical habitat characteristics. In addition, a 182-ha seasonally inundated floodplain habitat along the middle Willamette River was sampled during winter 2011 through spring 2012 to assess: (1) fish community composition, (2) spawning and rearing, and (3) timing of use and movement by fish species. Throughout the three years of longitudinal sampling, 36,586 fish were collected comprising 41 species, 22 native and 19 non-native. Overall, native fish represented 93% of the total fish sampled. Higher numbers of fish were collected in the upper river, and higher proportions of those fish were native species. Though non-native fish were more common in slough habitats than mainstem sties, the majority of fish collected in both habitat types were native. The strongest environmental predictors of fish community were quantitative measures of longitudinal distance, velocity, depth, percent macrophyte cover and percent embeddedness. Habitat type (slough versus mainstem) was also a significant predictor. Native fish species exhibited greater variability in habitat relationships than non-native fishes, though several native species were strongly associated with specific environmental attributes. Non-native species were more associated with slough habitats and sites with high amount of macrophyte growth and embedded substrates. Overall, 25 species had a high fidelity to mainstem or slough habitats. Equal numbers of native species showed a fidelity to either mainstem or slough sites, but non-native species were significantly related only to slough habitats. In the seasonally inundated floodplain habitat, an estimated 43,000 fish were collected comprising 23 species; 12 native and 11 non-native. Of these 98.1% were native. The most common native species were threespine stickleback Gasterosteus aculeatus and peamouth Mylocheilus caurinus while the most common non-native species were bluegill Lepomis macrochirus and western mosquitofish Gambusia affinus. Several species used the inundated floodplain for spawning and rearing, particularly threespine stickleback, peamouth and western mosquitofish. With the exception of young-of-year threespine stickleback, native species were collected mostly in the beginning and middle of the sampling period while non-native species were collected in the latter portion of the sampling. The Willamette River Basin has a long history of… Advisors/Committee Members: Gregory, Stan V. (advisor), Noakes, David L. G. (committee member).

Subjects/Keywords: Freshwater fishes – Oregon – Willamette River

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APA (6^th Edition):

Williams, J. E. (. E. (2014). Habitat relationships of native and non-native fishes of the Willamette River, Oregon. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/49883

Chicago Manual of Style (16^th Edition):

Williams, Joshua E (Joshua Everett). “Habitat relationships of native and non-native fishes of the Willamette River, Oregon.” 2014. Masters Thesis, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/49883.

MLA Handbook (7^th Edition):

Williams, Joshua E (Joshua Everett). “Habitat relationships of native and non-native fishes of the Willamette River, Oregon.” 2014. Web. 04 Mar 2021.

Vancouver:

Williams JE(E. Habitat relationships of native and non-native fishes of the Willamette River, Oregon. [Internet] [Masters thesis]. Oregon State University; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/49883.

Council of Science Editors:

Williams JE(E. Habitat relationships of native and non-native fishes of the Willamette River, Oregon. [Masters Thesis]. Oregon State University; 2014. Available from: http://hdl.handle.net/1957/49883

Texas A&M University

14. Van Diggelen, Amanda. Is Salinity Variability a Benthic Disturbance?.

Degree: MS, Marine Biology, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/152864

► Estuaries are subjected to variable salinity regimes governed by variable freshwater inflow and tidal regimes. Estuaries are less saline near the river (source of fresh… (more)

▼ Estuaries are subjected to variable salinity regimes governed by variable freshwater inflow and tidal regimes. Estuaries are less saline near the river (source of fresh water); salinities increase towards the inlet of the adjacent sea or ocean. Freshwater inflow is a driver to the functioning of estuaries, and average salinity is usually measured to identify the effects of inflow. However, salinity variability could act as a disturbance by producing unstable habitats. The purpose of this research was to determine if salinity variance is an indicator of benthic disturbance, and therefore a driver of community stability. The macrofauna communities of the five most southern estuaries on the Texas coastline were analyzed using a long-term data set. The estuaries lie in a climatic gradient and have different long-term salinity dynamics, thus salinity variance within and between estuaries can be compared. Benthic diversity, evenness, and richness (i.e., total number of species) were calculated and compared to salinity average and salinity variance to determine the efficacy of each diversity measure for determining community changes within and between estuarine systems. Salinity variance, rather than salinity average, was found to be more correlated to benthic diversity for each estuarine system. Freshwater inflow acts as a benthic disturbance both within and between estuaries. As salinity variance decreased (i.e. reduced freshwater inflow) diversity levels of benthic communities increased, while areas with more freshwater inflow displayed lower levels of benthic diversity. These findings advance a general theory of diversity maintenance. When communities are not influenced by persistent stressors, such as salinity variance, multiple stages of succession may occur with more species available to occupy the resulting open niches, thereby increasing diversity. Advisors/Committee Members: Montagna, Paul (advisor), Withers, Kimberly (committee member), Pollack, Jennifer (committee member).

Subjects/Keywords: community stability; freshwater inflow; disturbance

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APA (6^th Edition):

Van Diggelen, A. (2014). Is Salinity Variability a Benthic Disturbance?. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152864

Chicago Manual of Style (16^th Edition):

Van Diggelen, Amanda. “Is Salinity Variability a Benthic Disturbance?.” 2014. Masters Thesis, Texas A&M University. Accessed March 04, 2021. http://hdl.handle.net/1969.1/152864.

MLA Handbook (7^th Edition):

Van Diggelen, Amanda. “Is Salinity Variability a Benthic Disturbance?.” 2014. Web. 04 Mar 2021.

Vancouver:

Van Diggelen A. Is Salinity Variability a Benthic Disturbance?. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1969.1/152864.

Council of Science Editors:

Van Diggelen A. Is Salinity Variability a Benthic Disturbance?. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152864

University of Saskatchewan

15. Raes, Katherine. Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains.

Degree: 2020, University of Saskatchewan

URL: http://hdl.handle.net/10388/12843

► In recent decades, there has been growing interest in the toxicodynamics of the natural element selenium (Se) and its most commonly encountered chemical species, with… (more)

▼ In recent decades, there has been growing interest in the toxicodynamics of the natural element selenium (Se) and its most commonly encountered chemical species, with a notable focus on freshwater ecosystems that have shown toxicological sensitivity. Exposure to elevated Se has uncovered an unusually narrow threshold between its biological necessity and toxicity, particularly among the most sensitive taxa, including oviparous vertebrates for which exposure to excess Se can lead to teratogenicity and reproductive failure. Uncertainties persist relating to the trophic transfer of dietary Se to higher organisms, originating from the bioconcentration of aqueous-borne chemical species and their biotransformation at the base of the food web. As a result, research has been ongoing to discern the influence of naturally variable biogeochemical characteristics on the enrichment, transformation, and trophic transfer of Se into the taxa of greatest concern. The purpose of this thesis was to contribute to the current understanding of Se trophic dynamics by evaluating Se trophic transfer to higher consumer species, originating from dissolved inorganic chemical species of concern. Diets of field-collected biofilms showing a diversity of community compositions were exposed to control conditions (0.3 µg Se L-1) and to graded concentrations of selenite (SeIV) and selenate (SeVI) (5 and 25 µg Se L-1), respectively, and fed to a primary consumer species common to Canadian freshwater ecosystems, Hyallela azteca. Generally, SeIV was transferred through trophic levels following a concentration-dependent relationship, with the greatest divergence among tissue Se residues occurring between the invertebrates exposed to different field-collected biofilm communities, with trophic transfer factors ranging from 0.15 – 0.51 among all SeIV exposed treatments. Final mean H. azteca tissue Se concentrations ranged from 2.7 – 6.5 µg Se g-1 dw in the low SeIV treatment and 7.3 – 18 µg Se g-1 dw in the high SeIV treatment. Uptake of SeVI into the invertebrate tissues was not significantly different from the control treatment. Differences in bioconcentration and trophic transfer between chemical species and treatments appeared to vary as a function of differences in primary producer biomass and ionic competition for uptake. For the purpose of further evaluating Se trophic transfer to a more sensitive oviparous species at a higher trophic level, an environmentally relevant freshwater food chain was created. A probable exposure scenario was simulated through aqueous SeIV exposure of green alga Stichococcus bacillarus that was fed to H. azteca, which then served as the diet for a common Canadian freshwater secondary consumer species, the fathead minnow (Pimephales promelas). Three H. azteca dietary treatments (1.6 µg Se g-1 dw [control], 6.9 µg Se g-1 dw, and 19 µg Se g-1 dw) were collected and fed to the fish species in a partial lifecycle reproductive assay. Final muscle, gonad, and liver Se concentrations showed concentration-dependent increases with… Advisors/Committee Members: Hecker, Markus, Liber, Karsten, Doig, Lorne, Jardine, Tim, Janz, David, Hughes, Sarah.

Subjects/Keywords: Selenium; Freshwater; Trophic Transfer

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APA (6^th Edition):

Raes, K. (2020). Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12843

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Raes, Katherine. “Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains.” 2020. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/12843.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Raes, Katherine. “Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains.” 2020. Web. 04 Mar 2021.

Vancouver:

Raes K. Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains. [Internet] [Thesis]. University of Saskatchewan; 2020. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/12843.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Raes K. Trophic Transfer of Inorganic Selenium Species through Representative Freshwater Food Chains. [Thesis]. University of Saskatchewan; 2020. Available from: http://hdl.handle.net/10388/12843

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania

16. Richards, K. An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania.

Degree: 2010, University of Tasmania

URL: https://eprints.utas.edu.au/10755/2/richards-whole-thesis.pdf

► Narrow-range endemic species are thought to have naturally small distributions, limited by size, mobility, dispersal capabilities, specific habitat requirements and biogeographical boundaries. Many narrow range… (more)

▼ Narrow-range endemic species are thought to have naturally small distributions, limited by size, mobility, dispersal capabilities, specific habitat requirements and biogeographical boundaries. Many narrow range taxa are poorly reserved and most threatened freshwater invertebrate taxa in Tasmania, including the majority of Beddomeia species, fall into this category. Management of such taxa is reliant on informed ecological data which is not currently available for many freshwater invertebrates. To address the need for more detailed information on one such group of aquatic invertebrates, this study obtained spatial and ecological data for a number of Beddomeia species and identified habitat variables that together explained the snail distributions. A combination of geology, catchment size, forest type, flow and disturbance were identified as significant explanatory variables of Beddomeia presence within a river catchment. The distribution of some Beddomeia species is greater than previously predicted (at the catchment level), the Beddomeia spp. investigated were shown to occupy a wider number of streams than previously thought, suggesting that this is likely to be observed in other Beddomeia species. Detailed population structure data supported the previously held belief that Beddomeia spp. are long-lived and have low fecundity. Anthropogenic disturbance to streams, resulting from agricultural and forestry operations has previously been identified as a potential risk to aquatic invertebrates, particularly narrow-range endemics, but this has not, until now, been tested for Beddomeia species. The effects of cable-harvesting forestry disturbance on a high density Beddomeia sp. population were investigated. Population data indicated a recovery of population structure, if not abundance, within five years post-harvest, suggesting a higher level of tolerance to disturbance than had been previously anticipated. Sympatric associations between Hydrobiidae are not uncommon and were observed for Beddomeia spp. in many of the streams investigated. Several morphotypes from each of the two major study catchments, initially determined by shell measurements, were taxonomically described using a combination of external and internal characters that indicate a high level of intraspecific shell variation occurs, and failed to support the number of morphotypes identified using shell characters alone. The molecular taxonomic resolution within the genus Beddomeia was also explored, but the monophyly of the genus remains unresolved owing to the disparity of topologies recovered. Results obtained from these studies are used to review the management of Beddomeia and indicate that current measures are likely to be sufficient for headwater streams supporting the Beddomeia populations investigated, but a precautionary approach is required for other species for which there is limited information, and extra conservation measures may be necessary for those species proven to be restricted to a low number of locations.

Subjects/Keywords: freshwater mollusca; ecology; Hydrobiidae; taxonomy

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APA (6^th Edition):

Richards, K. (2010). An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/10755/2/richards-whole-thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Richards, K. “An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania.” 2010. Thesis, University of Tasmania. Accessed March 04, 2021. https://eprints.utas.edu.au/10755/2/richards-whole-thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Richards, K. “An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania.” 2010. Web. 04 Mar 2021.

Vancouver:

Richards K. An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania. [Internet] [Thesis]. University of Tasmania; 2010. [cited 2021 Mar 04]. Available from: https://eprints.utas.edu.au/10755/2/richards-whole-thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Richards K. An ecological, morphological and molecular investigation of Beddomeia species (Gastropoda: Hydrobiidae) in Tasmania. [Thesis]. University of Tasmania; 2010. Available from: https://eprints.utas.edu.au/10755/2/richards-whole-thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waikato

17. Watson, Nathan Thomas Noble. Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences .

Degree: 2014, University of Waikato

URL: http://hdl.handle.net/10289/9216

► The diversity of New Zealand’s freshwater copepods has been largely understudied. In order to enhance our understanding of this taxon, I used the mitochondrial cytochrome… (more)

▼ The diversity of New Zealand’s freshwater copepods has been largely understudied. In order to enhance our understanding of this taxon, I used the mitochondrial cytochrome c oxidase subunit one (COI) gene sequences to examine the diversity of two orders of New Zealand’s freshwater copepods; Cyclopoida and Harpacticoida. Where possible, I also assessed the global affinities of taxa using available sequences from global databases (e.g. GenBank, BOLD). Specimens were collected from several sites across both the North Island and South Island of New Zealand. From these, DNA was extracted from 246 individuals, of which COI sequences were successfully obtained from 84 (a success rate of 34%). Sequences represented 17 species of freshwater copepod; nine species of cyclopoid and eight species of harpacticoid; all species were clearly delineated by the COI gene. Intraspecific sequence divergences were generally <1% whereas interspecific divergences usually exceeded 13%. For the cyclopoid copepods, three taxa (two distinct species of Eucyclops cf. ‘serrulatus’ and Acanthocyclops americanus) showed close molecular affinities to Northern Hemisphere populations (<1% divergent in all cases); and are likely to represent recent human-mediated introductions to New Zealand. Additionally, Mesocyclops ‘leuckarti’ was <1% divergent to an undescribed cyclopoid species from South Australia, likely Mesocyclops australiensis. For the harpacticoids, specimens of Elaphoidella bidens and two geographically distinct populations of Bryocamptus pygmaeus showed high levels of intraspecific diversity (>12% and >18% divergent respectively), suggesting the presence of cryptic taxa. These results suggest that the diversity of New Zealand’s freshwater cyclopoid and harpacticoid copepods is underestimated and several non-indigenous taxa may be present among the New Zealand copepod fauna. I conclude that the COI gene will be a useful tool in assessing New Zealand’s native copepod biodiversity and also in identifying invasive species. Advisors/Committee Members: Hogg, Ian D (advisor), Duggan, Ian C (advisor).

Subjects/Keywords: Copepods; DNA Barcoding; Freshwater; COI

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APA (6^th Edition):

Watson, N. T. N. (2014). Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/9216

Chicago Manual of Style (16^th Edition):

Watson, Nathan Thomas Noble. “Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences .” 2014. Masters Thesis, University of Waikato. Accessed March 04, 2021. http://hdl.handle.net/10289/9216.

MLA Handbook (7^th Edition):

Watson, Nathan Thomas Noble. “Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences .” 2014. Web. 04 Mar 2021.

Vancouver:

Watson NTN. Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences . [Internet] [Masters thesis]. University of Waikato; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10289/9216.

Council of Science Editors:

Watson NTN. Assessing the Diversity of New Zealand's Freshwater Copepods (Crustacea:Copepoda) using Mitochondrial DNA (COI) Sequences . [Masters Thesis]. University of Waikato; 2014. Available from: http://hdl.handle.net/10289/9216

Queensland University of Technology

18. Gereva, Sompert. An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar.

Degree: 2014, Queensland University of Technology

URL: https://eprints.qut.edu.au/69907/

► Fisheries and aquaculture are important for food security, income generation and are critical to long term sustainability of many countries. Freshwater prawns have been harvested… (more)

Subjects/Keywords: vanuatu; freshwater; macrobrachium; rosenbergii; lar

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APA (6^th Edition):

Gereva, S. (2014). An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/69907/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gereva, Sompert. “An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar.” 2014. Thesis, Queensland University of Technology. Accessed March 04, 2021. https://eprints.qut.edu.au/69907/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gereva, Sompert. “An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar.” 2014. Web. 04 Mar 2021.

Vancouver:

Gereva S. An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar. [Internet] [Thesis]. Queensland University of Technology; 2014. [cited 2021 Mar 04]. Available from: https://eprints.qut.edu.au/69907/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gereva S. An evaluation of the culture performance of two Macrobrachium species in Vanuatu: the exotic M. rosenbergii and the indigenous M. lar. [Thesis]. Queensland University of Technology; 2014. Available from: https://eprints.qut.edu.au/69907/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

19. Lyford, John Higgins. Primary productivity and community structure of an estuarine impoundment.

Degree: PhD, Botany, 1966, Oregon State University

URL: http://hdl.handle.net/1957/47574

► An impounded estuary was employed to study primary productivity, community respiration, and community structure as they related to seasonal and temporal succession, salinity, and water… (more)

Subjects/Keywords: Freshwater ecology

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APA (6^th Edition):

Lyford, J. H. (1966). Primary productivity and community structure of an estuarine impoundment. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/47574

Chicago Manual of Style (16^th Edition):

Lyford, John Higgins. “Primary productivity and community structure of an estuarine impoundment.” 1966. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/47574.

MLA Handbook (7^th Edition):

Lyford, John Higgins. “Primary productivity and community structure of an estuarine impoundment.” 1966. Web. 04 Mar 2021.

Vancouver:

Lyford JH. Primary productivity and community structure of an estuarine impoundment. [Internet] [Doctoral dissertation]. Oregon State University; 1966. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/47574.

Council of Science Editors:

Lyford JH. Primary productivity and community structure of an estuarine impoundment. [Doctoral Dissertation]. Oregon State University; 1966. Available from: http://hdl.handle.net/1957/47574

Oregon State University

20. Reese, Weldon Harold. Physiological ecology and structure of benthic communities in a woodland stream.

Degree: PhD, Botany, 1966, Oregon State University

URL: http://hdl.handle.net/1957/48440

► This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It… (more)

▼ This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total light energy received upon the periphyton and benthic plants. Suitable enrichment was predicated on establishment and maintenance of an abundant growth of Sphaerotilus and involved the isolation and study of this organism in pure cultures, in laboratory streams as well as in the experimental stream. Abundant growth of Sphaerotilus was obtained in cultures at temperatures of 5, 10, 15, 20, 25, and 30°C while in the laboratory streams and the experimental stream, the organism produced abundant growths at a range of temperatures from 2 to 12°C. A variety of carbon and nitrogen sources was investigated for maintenance of growth of Sphaerotilus. Abundant growth was produced when the enrichment included a specific nitrogen source combined with a specific carbon source. A carbon-nitrogen ratio of 8 to 1 proved satisfactory for maintaining Sphaerotilus in the stream. An investigation of the cropping effect of stream snails indicated that the presence of large numbers of snails decreased the standing crop of Sphaerotilus both in the laboratory streams and the experimental stream. A method was devised for determining the daily mean percentages of full sunlight reaching the four experimental sections of Berry Creek. Approximately 4 percent reached the shaded sections and 50 percent reached the light sections during the summer months. The range of mean saturating light intensities on the four experimental sections was from 250 to 950 footcandles. Methods designed to sample the plant communities in the experimental sections of the stream included: artificial substrates (microscope slides) used to observe the density and diversity of micro-algae; a system of grids used to record distribution of the plant biomass; and the removal of a portion of the stream substrate for the detailed examination of the benthic community. Both microscopic and macroscopic observations indicated that twice as many species and greater numbers of autotrophic organisms were present in the unenriched than in the enriched sections. Sub-samples of the harvested and homogenized materials scoured from the stream substrate, were used to determine biomass, organic matter, caloric content and pigment content. The biomasses from the enriched sections were greater than those from the unenriched sections, but contained large amounts of silt and were lower in organic matter and caloric content. The mean percentages of organic matter for the sections were: shaded, unenriched-33; light, unenriched-42; shaded, enriched-19 and light, enriched-19. The range of chlorophyll a from the four experimental sections was 0.03 to 0.28 g/m². The concentration of chlorophyll, when representing spatial and seasonal… Advisors/Committee Members: Phinney, Harry K. (advisor).

Subjects/Keywords: Freshwater ecology

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APA (6^th Edition):

Reese, W. H. (1966). Physiological ecology and structure of benthic communities in a woodland stream. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/48440

Chicago Manual of Style (16^th Edition):

Reese, Weldon Harold. “Physiological ecology and structure of benthic communities in a woodland stream.” 1966. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/48440.

MLA Handbook (7^th Edition):

Reese, Weldon Harold. “Physiological ecology and structure of benthic communities in a woodland stream.” 1966. Web. 04 Mar 2021.

Vancouver:

Reese WH. Physiological ecology and structure of benthic communities in a woodland stream. [Internet] [Doctoral dissertation]. Oregon State University; 1966. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/48440.

Council of Science Editors:

Reese WH. Physiological ecology and structure of benthic communities in a woodland stream. [Doctoral Dissertation]. Oregon State University; 1966. Available from: http://hdl.handle.net/1957/48440

Oregon State University

21. Walker, Lester Eugene. Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur).

Degree: PhD, Zoology, 1970, Oregon State University

URL: http://hdl.handle.net/1957/45732

► Aspects of hydromineral balance in the stenohaline fresh-water catfish, Ictalurus nebulosus (Le Sueur) were studied at 10° and 20°C. Temperature did not affect water content… (more)

▼ Aspects of hydromineral balance in the stenohaline fresh-water catfish, Ictalurus nebulosus (Le Sueur) were studied at 10° and 20°C. Temperature did not affect water content significantly. Water content was 78 ml/100 g body weight, 32% of which is in muscle and 49% in the skeleton and associated connective tissue. The extracellular space (inulin space) was 8.7 ml/100 g at 10° and 11.3 ml/100 g at 20°C. A 100 g animal contains 4680 microequivalents of Na, 3200 microequivalents of Cl, and 7180 microequivalents of K. About 77% of the Na and 82% of the Cl exchange with ²²Na and ³⁶CI in 36 hours at 10°C. Plasma concentrations of ions in mM/l at 10° are: Na - 104; Cl - 86; and K - 4. At the lower temperature there was a shift in these ions from the extracellular to the intracellular compartments. The endogenous Cl space was increased by 15% and the sodium space by 29% relative to 20° animals. Skeletal muscle comprises 40% of the wet weight of the fish. The extracellular space (inulin) was 5 ml/100 g at 10°C. About 12% of the total Na and Cl in the animal is in skeletal muscle. Both ions exchange completely within 40 hours. Intracellular concentration of Na was 11 mM/l and Cl was 5 mM/l at 10°C. The rate of osmotic uptake of water at 10°C was 4.27 ml/kg-hr or 0.68 μl/cm²-hr. At 20° the respective values were 10 ml/kg-hr and 1.93 μl/cm²-hr. Water uptake is related to body weight by the relation: uptake = 1.3 weight⁰[superscript .]⁶² . Uptake across the trunk region was separated from uptake across the head region by measuring uptake when one region was bathed in is osmotic sucrose solution. From a knowledge of the skin area and the gill area a permeability constant was derived for each epithelial region. The value was 0.85 μ/sec for skin and 0.5 μ/sec for gills at 10°C. The rate of urine flow equalled the rate of uptake of water at both temperatures. Glomerular filtration rates were 14 and 23 ml/kg-hr at 10° and 20° respectively. Over 98% of the Na and Cl filtered is reabsorbed. At 10°C the free water clearance is 3.64 ml/kg-hr. The sodium efflux from animals in tap water at 10°C was about 1.1 μM/10 g-hr of which about 27% is renal loss, 63% is gill loss, and 10% is skin loss. For Cl the efflux was 0.8 μM/10 g-hr, with 23% being renal loss, 65% being gill loss, and 12% being skin loss. The influxes of Na and Cl were the same as the respective effluxes. Virtually all of the influx occurred across the gills. The uptake of both Na and Cl is thermodynamically active. The body fluids are positive to the bath (tap water or pond water) by 2 to 3 mV. This potential difference was not affected by sodium concentration in the bath up to 100 mM/l. The potential was slightly reduced with an elevation of bath Cl to 100 mM/l. Advisors/Committee Members: Alvarado, Ronald H. (advisor).

Subjects/Keywords: Freshwater fishes

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APA (6^th Edition):

Walker, L. E. (1970). Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur). (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/45732

Chicago Manual of Style (16^th Edition):

Walker, Lester Eugene. “Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur).” 1970. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/45732.

MLA Handbook (7^th Edition):

Walker, Lester Eugene. “Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur).” 1970. Web. 04 Mar 2021.

Vancouver:

Walker LE. Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur). [Internet] [Doctoral dissertation]. Oregon State University; 1970. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/45732.

Council of Science Editors:

Walker LE. Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur). [Doctoral Dissertation]. Oregon State University; 1970. Available from: http://hdl.handle.net/1957/45732

Oregon State University

22. McIntire, C. David. Laboratory studies of periphyton production and community metabolism in lotic environments.

Degree: PhD, Botany, 1963, Oregon State University

URL: http://hdl.handle.net/1957/17915

See pdf

Subjects/Keywords: Freshwater plants

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APA (6^th Edition):

McIntire, C. D. (1963). Laboratory studies of periphyton production and community metabolism in lotic environments. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/17915

Chicago Manual of Style (16^th Edition):

McIntire, C David. “Laboratory studies of periphyton production and community metabolism in lotic environments.” 1963. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021. http://hdl.handle.net/1957/17915.

MLA Handbook (7^th Edition):

McIntire, C David. “Laboratory studies of periphyton production and community metabolism in lotic environments.” 1963. Web. 04 Mar 2021.

Vancouver:

McIntire CD. Laboratory studies of periphyton production and community metabolism in lotic environments. [Internet] [Doctoral dissertation]. Oregon State University; 1963. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1957/17915.

Council of Science Editors:

McIntire CD. Laboratory studies of periphyton production and community metabolism in lotic environments. [Doctoral Dissertation]. Oregon State University; 1963. Available from: http://hdl.handle.net/1957/17915

Victoria University of Wellington

23. Kelly, Laura. Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects.

Degree: 2019, Victoria University of Wellington

URL: http://hdl.handle.net/10063/8328

► Toxic, benthic cyanobacterial proliferations occur in rivers globally and are increasing in both frequency and severity. More than 100 dog deaths have been reported in… (more)

▼ Toxic, benthic cyanobacterial proliferations occur in rivers globally and are increasing in both frequency and severity. More than 100 dog deaths have been reported in New Zealand since 2005, and dogs have died due to cyanotoxins from benthic cyanobacteria in California and France in recent years. In New Zealand, toxic, benthic proliferations are typically dominated by the genus Microcoleus, which produces the potent neurotoxins called anatoxins. Investigations of the drivers of Microcoleus proliferations have been carried out, revealing important relationships between growth, nutrients and flow. Despite increased attention over the past 15 years, significant knowledge gaps remain regarding regulation of anatoxin concentrations in mats and the ecological impacts of toxic Microcoleus-dominated proliferations in aquatic ecosystems. In this study, I aimed to address these crucial knowledge gaps. Concentrations of anatoxins in Microcoleus-dominated mats are highly variable, ranging from 0 μg g⁻¹ to over 2000 μg g⁻¹ dry weight. Like other cyanobacteria, both toxic and non-toxic strains coexist, and it is possible that the relative abundance of these strains is related to the observed variability in anatoxin concentrations. I developed a quantitative PCR assay specific to the Microcoleus anaC gene and combined this with a 16S rRNA quantitative PCR specific to cyanobacteria. This assay enabled the relative abundance of toxic and non-toxic strains to be quantified for the first time in environmental samples of Microcoleus-dominated mats. The quantitative PCR assay was applied to 122 environmental samples. Toxic cells made up 0% to 30.3% of the samples and significant differences were detectable among rivers, with wide variation evident both within and among rivers. Anatoxin contents in samples were significantly correlated with the proportion of toxic cells, suggesting that variation in anatoxin concentrations are related primarily to the dominance of toxic strains. A field study was conducted in California to identify cyanotoxin producers, investigate the utility of the primers from the quantitative PCR developed in the previous chapter in an international setting and determine the extent of spatial variability in anatoxin concentrations and quotas. Samples were collected from the Eel and Russian rivers in northern California and gene screening, followed by sequencing, was conducted to identify likely cyanotoxin producers. Cyanotoxin concentrations were measured using liquid chromatography tandem-mass spectrometry and the anatoxin quotas were determined using droplet digital PCR. Cyanotoxin producers were identified as Microcoleus producing anatoxins and Nodularia producing nodularin. Anatoxin concentrations were highly variable and differed significantly among sites; however, this variability did not extend to anatoxin quotas, indicating that the abundance of toxic cells also drives anatoxin content in this system. The anatoxin congener dihydroanatoxin-a comprised a significant proportion of the total anatoxins… Advisors/Committee Members: Ryan, Ken, Wood, Susie.

Subjects/Keywords: Cyanobacteria; Anatoxin; Phormidium; Freshwater ecology

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APA (6^th Edition):

Kelly, L. (2019). Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects. (Doctoral Dissertation). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/8328

Chicago Manual of Style (16^th Edition):

Kelly, Laura. “Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects.” 2019. Doctoral Dissertation, Victoria University of Wellington. Accessed March 04, 2021. http://hdl.handle.net/10063/8328.

MLA Handbook (7^th Edition):

Kelly, Laura. “Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects.” 2019. Web. 04 Mar 2021.

Vancouver:

Kelly L. Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects. [Internet] [Doctoral dissertation]. Victoria University of Wellington; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10063/8328.

Council of Science Editors:

Kelly L. Toxic benthic cyanobacteria (Microcoleus autumnalis): Genetic structure and ecological effects. [Doctoral Dissertation]. Victoria University of Wellington; 2019. Available from: http://hdl.handle.net/10063/8328

University of Toronto

24. Hasnain, Sarah. Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish.

Degree: 2012, University of Toronto

URL: http://hdl.handle.net/1807/32574

►

Habitat temperature is a major determinant of performance and activity in fish. I examined the relationships between thermal response metrics describing growth (optimal growth temperature… (more)

Subjects/Keywords: Thermal Ecology; Freshwater fish; 0329

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APA (6^th Edition):

Hasnain, S. (2012). Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/32574

Chicago Manual of Style (16^th Edition):

Hasnain, Sarah. “Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish.” 2012. Masters Thesis, University of Toronto. Accessed March 04, 2021. http://hdl.handle.net/1807/32574.

MLA Handbook (7^th Edition):

Hasnain, Sarah. “Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish.” 2012. Web. 04 Mar 2021.

Vancouver:

Hasnain S. Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish. [Internet] [Masters thesis]. University of Toronto; 2012. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1807/32574.

Council of Science Editors:

Hasnain S. Factors Influencing Ecological Metrics of Thermal Response in North American Freshwater Fish. [Masters Thesis]. University of Toronto; 2012. Available from: http://hdl.handle.net/1807/32574

25. Treesa Varghese; Prof. (Dr.) Saleena Mathew. Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes.

Degree: 2017, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/5417

Subjects/Keywords: Freshwater Fishes

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APA (6^th Edition):

Mathew, T. V. P. (. S. (2017). Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/5417

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mathew, Treesa Varghese; Prof. (Dr.) Saleena. “Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes.” 2017. Thesis, Cochin University of Science and Technology. Accessed March 04, 2021. http://dyuthi.cusat.ac.in/purl/5417.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mathew, Treesa Varghese; Prof. (Dr.) Saleena. “Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes.” 2017. Web. 04 Mar 2021.

Vancouver:

Mathew TVP(S. Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes. [Internet] [Thesis]. Cochin University of Science and Technology; 2017. [cited 2021 Mar 04]. Available from: http://dyuthi.cusat.ac.in/purl/5417.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mathew TVP(S. Role of autolytic enzymes in muscle softening and resultant physico-chemical changes during post-mortem storage of selected freshwater fishes. [Thesis]. Cochin University of Science and Technology; 2017. Available from: http://dyuthi.cusat.ac.in/purl/5417

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manitoba

26. Black, Tyler Andrew. The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment.

Degree: Environment and Geography, 2019, University of Manitoba

URL: http://hdl.handle.net/1993/34475

► To bring bitumen from Canada's Oil Sands to market requires transportation over sensitive boreal environments via rail, truck, and pipeline. With proposed expansion of pipeline… (more)

Subjects/Keywords: oil; invertebrates; diluted bitumen; freshwater

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APA (6^th Edition):

Black, T. A. (2019). The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/34475

Chicago Manual of Style (16^th Edition):

Black, Tyler Andrew. “The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment.” 2019. Masters Thesis, University of Manitoba. Accessed March 04, 2021. http://hdl.handle.net/1993/34475.

MLA Handbook (7^th Edition):

Black, Tyler Andrew. “The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment.” 2019. Web. 04 Mar 2021.

Vancouver:

Black TA. The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment. [Internet] [Masters thesis]. University of Manitoba; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1993/34475.

Council of Science Editors:

Black TA. The effects of a simulated spill of diluted bitumen on invertebrates in a boreal lake environment. [Masters Thesis]. University of Manitoba; 2019. Available from: http://hdl.handle.net/1993/34475

Victoria University of Wellington

27. Wood, Vincent. Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output.

Degree: 2016, Victoria University of Wellington

URL: http://hdl.handle.net/10063/6239

► Inanga (Galaxias maculatus) are the major component of New Zealand’s whitebait fisheries. Monitoring of freshwater-based adult populations in both North and South Island river systems… (more)

▼ Inanga (Galaxias maculatus) are the major component of New Zealand’s whitebait fisheries. Monitoring of freshwater-based adult populations in both North and South Island river systems suggests a general decline in numbers of fish, and specific streams and watersheds are of particular concern for some regional councils. Given this context, improved information about the environmental conditions that influence inanga’s reproductive output may help to inform appropriate management actions and improve the long term viability of these populations. The breeding biology of adult inanga has been the focus of considerable research effort, with restoration of spawning grounds further extending our knowledge of spatio-temporal patterns of spawning. However, the behaviour patterns and fates of adult fish outside of the spawning locations and seasons are poorly known, as are the factors that may influence the survival and development of pre-spawning stages of inanga. Variation in body shape and size influences multiple performance and fitness attributes, and has major implications for reproduction. My thesis aims to quantify relationships between morphology and reproductive output for adult inanga, and to investigate environmental factors that may influence morphological development. I collected inanga at two discrete stages of adult development: (i) pre-spawning stage adults at upstream habitats and (ii) spawning-stage adults collected at known breeding grounds during the spawning season. I photographed inanga in the field using a purpose-built aquarium and measured a set of morphological characteristics related to reproductive output and swimming ability. Specifically, I measured standard length, head depth, body depth and caudal peduncle depth. A subsample of adult inanga collected during the spawning season were returned to the laboratory and euthanized to measure aspects of their reproductive biology. Specifically, I measured reproductive output using gonad weight, I estimated maturity using the gonadosomatic index (GSI: weight of the gonad relative to total body weight), and I estimated energetic reserves using the hepatosomatic index (HSI: weight of the liver relative to total body weight). Pre-spawning stage inanga in the Waiwhetu Stream displayed deeper bodies than fish in either the Hutt or Wainuiomata Rivers, potentially due to higher concentrations of food. Inanga in the Wainuiomata River displayed slightly larger sizes prior to the spawning season and substantially larger bodies during the spawning season. Although the Waiwhetu Stream may have had a greater supply of food, high densities of fish in smaller stream systems could constrain adult growth. Spawning-stage adults collected from the Waiwhetu Stream had greater reproductive output than fish collected from the Hutt River, with a peak in spawning activity during May. Fish collected from spawning grounds in the Hutt River had lower reproductive output and two peaks in spawning activity during March and May. Inanga in the Hutt River also displayed greater… Advisors/Committee Members: Shima, Jeffrey.

Subjects/Keywords: Inanga; Freshwater; Morphology; Reproduction

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APA (6^th Edition):

Wood, V. (2016). Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/6239

Chicago Manual of Style (16^th Edition):

Wood, Vincent. “Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output.” 2016. Masters Thesis, Victoria University of Wellington. Accessed March 04, 2021. http://hdl.handle.net/10063/6239.

MLA Handbook (7^th Edition):

Wood, Vincent. “Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output.” 2016. Web. 04 Mar 2021.

Vancouver:

Wood V. Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output. [Internet] [Masters thesis]. Victoria University of Wellington; 2016. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10063/6239.

Council of Science Editors:

Wood V. Three rivers and a fish: body shape variation in adult inanga (Galaxias maculatus) and implications for reproductive output. [Masters Thesis]. Victoria University of Wellington; 2016. Available from: http://hdl.handle.net/10063/6239

University of Cape Town

28. Reizenberg, Jody-Lee. The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species.

Degree: Image, Biological Sciences, 2017, University of Cape Town

URL: http://hdl.handle.net/11427/25537

► Global climate change models indicate that a rise in temperature and reduction in rainfall in the Western Cape Province of South Africa is inevitable and… (more)

▼ Global climate change models indicate that a rise in temperature and reduction in rainfall in the Western Cape Province of South Africa is inevitable and unavoidable. Within the Western Cape lies the Cape Floristic Region (CFR); a biodiversity hotspot with high levels of endemism. This includes its freshwater fish assemblage. Whereas the current greatest threats to native fish biodiversity are habitat degradation and invasion by non-native species, predicted climate change is likely to further impact fish communities negatively. As a master abiotic variable in aquatic ecosystems; temperature influences the fitness, behaviour, and life-histories of aquatic biota. Thermal alteration may therefore affect sensitive fish species. The upper thermal limit, determined via the critical thermal method, has been validated as a measure of thermal sensitivity. To better understand the impacts of climate change on the native fish of the CFR, upper thermal limits (critical thermal maxima/CTmax) were determined for seven native species of freshwater fish. Thermal preferences were also determined for five of these species using the acute gradient tank approach to elucidate thermal habitat preferences. Species that were identified by the IUCN as vulnerable, endangered, or critically endangered were selected from the four main families of native fish in the CFR (Anabantidae, Austroglanidae, Cyprinidae, and Galaxiidae), from four Rivers. Overall, Cape galaxias (Galaxias zebratus), Breede River redfin (Pseudobarbus burchelli), Berg River redfin (Pseudobarbus burgi), Clanwilliam redfin (Pseudobarbus calidus), and fiery redfin (Pseudobarbus phlegethon) were found to be most sensitive to increased temperature (CTmax= 29.8-32.7⁰C). Clanwilliam rock-catfish (Austroglanis gilli) and Cape kurper (Sandelia capensis) were found to be moderately sensitive (CTmax= 33.0-35.3⁰C). Similar trends were found using the thermal preference approach as CTmax and thermal preference were found to correlate well. The results were related to in-situ water temperature, which influenced both parameters. Thermal tolerances and preferences of all the native species exceed that of invasive salmonids (Onchorynchus mykiss and Salmo trutta). However, non-native centrarchids (Micropterus spp.) are more thermally tolerant, indicating an increase in threat by warm adapted non-natives. These data suggest that species interactions and distributions are likely to undergo substantial changes in response to elevated water temperature. Advisors/Committee Members: Dallas, Helen Fiona (advisor), Shelton, Jeremy Mark (advisor), Reed, Cecile C (advisor).

Subjects/Keywords: Freshwater Research; Climate Change

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APA (6^th Edition):

Reizenberg, J. (2017). The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species. (Thesis). University of Cape Town. Retrieved from http://hdl.handle.net/11427/25537

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Reizenberg, Jody-Lee. “The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species.” 2017. Thesis, University of Cape Town. Accessed March 04, 2021. http://hdl.handle.net/11427/25537.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Reizenberg, Jody-Lee. “The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species.” 2017. Web. 04 Mar 2021.

Vancouver:

Reizenberg J. The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species. [Internet] [Thesis]. University of Cape Town; 2017. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11427/25537.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Reizenberg J. The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species. [Thesis]. University of Cape Town; 2017. Available from: http://hdl.handle.net/11427/25537

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

29. Vannote, Robin Lewis, 1934-. Community productivity and energy flow in an enriched warm-water system.

Degree: PhD, Department of Fisheries and Wildlife, 1963, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:43721

Subjects/Keywords: Freshwater biology

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vannote, Robin Lewis, 1. (1963). Community productivity and energy flow in an enriched warm-water system. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:43721

Chicago Manual of Style (16^th Edition):

Vannote, Robin Lewis, 1934-. “Community productivity and energy flow in an enriched warm-water system.” 1963. Doctoral Dissertation, Michigan State University. Accessed March 04, 2021. http://etd.lib.msu.edu/islandora/object/etd:43721.

MLA Handbook (7^th Edition):

Vannote, Robin Lewis, 1934-. “Community productivity and energy flow in an enriched warm-water system.” 1963. Web. 04 Mar 2021.

Vancouver:

Vannote, Robin Lewis 1. Community productivity and energy flow in an enriched warm-water system. [Internet] [Doctoral dissertation]. Michigan State University; 1963. [cited 2021 Mar 04]. Available from: http://etd.lib.msu.edu/islandora/object/etd:43721.

Council of Science Editors:

Vannote, Robin Lewis 1. Community productivity and energy flow in an enriched warm-water system. [Doctoral Dissertation]. Michigan State University; 1963. Available from: http://etd.lib.msu.edu/islandora/object/etd:43721

Michigan State University

30. Keup, Lowell E. Biological responses of fertilization in a lake and stream.

Degree: MS, 1958, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:7556

Subjects/Keywords: Freshwater biology

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Keup, L. E. (1958). Biological responses of fertilization in a lake and stream. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:7556

Chicago Manual of Style (16^th Edition):

Keup, Lowell E. “Biological responses of fertilization in a lake and stream.” 1958. Masters Thesis, Michigan State University. Accessed March 04, 2021. http://etd.lib.msu.edu/islandora/object/etd:7556.

MLA Handbook (7^th Edition):

Keup, Lowell E. “Biological responses of fertilization in a lake and stream.” 1958. Web. 04 Mar 2021.

Vancouver:

Keup LE. Biological responses of fertilization in a lake and stream. [Internet] [Masters thesis]. Michigan State University; 1958. [cited 2021 Mar 04]. Available from: http://etd.lib.msu.edu/islandora/object/etd:7556.

Council of Science Editors:

Keup LE. Biological responses of fertilization in a lake and stream. [Masters Thesis]. Michigan State University; 1958. Available from: http://etd.lib.msu.edu/islandora/object/etd:7556

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Open Access Theses and Dissertations