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You searched for +publisher:"Purdue University" +contributor:("Tomas Hook"). Showing records 1 – 2 of 2 total matches.

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Purdue University

1. Klinkhamer, Christopher Jacob. The combined effects of anthropogenic and environmental stressors on Fundulus grandis development.

Degree: MS, Health Sciences, 2014, Purdue University

The 2010 Deepwater Horizon oil spill resulted in the release of ~ 5 million barrels of crude oil from the Macondo wellhead into the Gulf of Mexico. Oil from the spill was documented on 1,772km of shoreline with 847km of shoreline remaining oiled a year after the spill, and 687km of shoreline remaining oiled two years after the spill. Currently, there are few data available concerning long-term, sublethal effects associated with chronic exposure to crude oil in the Gulf of Mexico. In addition to the anthropogenic-induced stress of polycyclic aromatic hydrocarbon (PAH) exposure, aquatic organisms living in estuarial areas of the Gulf of Mexico must also contend with environmental stressors including large fluctuations in dissolved oxygen (DO), temperature, and salinity. For this study, Fundulus grandis was chosen as a model species to investigate the combined effects of oil contaminants (PAHs) and environmental stressors. Embryos <24hpf were exposed to various PAH concentrations and environmental conditions>(DO: 2, 6ppm; temperature: 20, 25, 30°C; salinity: 3, 7, 30ppt) until hatching and concentrations eliciting 50% mortality (LC50) calculated. Regardless of environmental conditions, LC50 values fell within a narrow range (43.2–77.2ppb), with the exception of one experiment conducted at high DO (6ppm), low temperature (20°C) and high salinity (30ppt) resulting in an LC50 value of 357.1ppb. The data suggest that low temperatures and high salinities, such as may be present in estuarial waters of the Gulf of Mexico, may significantly reduce sensitivity to PAH exposure during early life stage development. The results of this study may be used to construct population models for Fundulus grandis based on environmental conditions and oiling known to exist in the Gulf of Mexico. Advisors/Committee Members: Maria S. Sepulveda, Maria S. Sepulveda, Cecon Mahapatra, Tomas Hook.

Subjects/Keywords: Medicine and Health Sciences; Toxicology

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

APA (6th Edition):

Klinkhamer, C. J. (2014). The combined effects of anthropogenic and environmental stressors on Fundulus grandis development. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/642

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

Chicago Manual of Style (16th Edition):

Klinkhamer, Christopher Jacob. “The combined effects of anthropogenic and environmental stressors on Fundulus grandis development.” 2014. Thesis, Purdue University. Accessed September 21, 2020. http://docs.lib.purdue.edu/open_access_theses/642.

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

MLA Handbook (7th Edition):

Klinkhamer, Christopher Jacob. “The combined effects of anthropogenic and environmental stressors on Fundulus grandis development.” 2014. Web. 21 Sep 2020.

Vancouver:

Klinkhamer CJ. The combined effects of anthropogenic and environmental stressors on Fundulus grandis development. [Internet] [Thesis]. Purdue University; 2014. [cited 2020 Sep 21]. Available from: http://docs.lib.purdue.edu/open_access_theses/642.

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

Council of Science Editors:

Klinkhamer CJ. The combined effects of anthropogenic and environmental stressors on Fundulus grandis development. [Thesis]. Purdue University; 2014. Available from: http://docs.lib.purdue.edu/open_access_theses/642

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


Purdue University

2. Coulter, Alison Adele. Biology and ecology of bigheaded carp in an invaded ecosystem.

Degree: PhD, Forestry and Natural Resources, 2015, Purdue University

Globally, the homogenization of species has become a threat to biodiversity. As species are transported around the world, a portion of these species, released intentionally or accidentally, may become invasive and can produce negative impacts. Great effort has been invested into early identification and prevention of invasions as these are considered less expensive than managing an invasion. Unfortunately, species may exhibit varying characteristics across ecosystems, and so their behavior and potential survival in a new environment may be difficult to predict. Therefore, I examined trends in the biology and behavior of invasive fishes, including the plasticity surrounding these and how they may contribute to successful invasions, using bigheaded carps (Hypophthalmichthys spp., silver and bighead carp and their hybrids) in the Wabash River, Indiana (USA), as a case study. Trends in population characteristics appeared to vary with invasion stage. Female-skewed sex ratios, changing length-weight relationships, and earlier maturation are all characteristics that may ultimately contribute to the successful establishment of these fishes along invasion fronts. Movements could be extremely rapid but exhibited predictable patterns that may facilitate the management and control of these invasive fishes. Reproduction in these species was influenced by different environmental cues than those from their native ranges and was dependent on growing degree day rather than changes in river discharge. Hybrid bigheaded carp (silver x bighead carp) were not different from silver carp in any of the characteristics examined (i.e., movements, condition, diet) but are increasingly represented in adults and eggs in this system and may serve to increase heterozygosity. Stable isotope analysis indicated that there was little dietary overlap between bigheaded carps and native planktivores. Additionally, there was seasonal variation in resource use that may function to minimize this overlap. Overall, many of the variables examined in these studies may be influential in facilitating the successful establishment and spread of these invasive fishes. Advisors/Committee Members: Reuben R. Goforth, Reuben R. Goforth, Tomas Hook, Jon Amberg, Bryan C. Pijanowski.

Subjects/Keywords: Natural Resources and Conservation; Terrestrial and Aquatic Ecology

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

APA (6th Edition):

Coulter, A. A. (2015). Biology and ecology of bigheaded carp in an invaded ecosystem. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/443

Chicago Manual of Style (16th Edition):

Coulter, Alison Adele. “Biology and ecology of bigheaded carp in an invaded ecosystem.” 2015. Doctoral Dissertation, Purdue University. Accessed September 21, 2020. https://docs.lib.purdue.edu/open_access_dissertations/443.

MLA Handbook (7th Edition):

Coulter, Alison Adele. “Biology and ecology of bigheaded carp in an invaded ecosystem.” 2015. Web. 21 Sep 2020.

Vancouver:

Coulter AA. Biology and ecology of bigheaded carp in an invaded ecosystem. [Internet] [Doctoral dissertation]. Purdue University; 2015. [cited 2020 Sep 21]. Available from: https://docs.lib.purdue.edu/open_access_dissertations/443.

Council of Science Editors:

Coulter AA. Biology and ecology of bigheaded carp in an invaded ecosystem. [Doctoral Dissertation]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_dissertations/443

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