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You searched for id:"oai:NSYSU:etd-0808117-085212". One record found.

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NSYSU

1. Chen, Yen-Hsun. The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao.

Degree: Master, Marine Environment and Engineering, 2017, NSYSU

Fisheries rank the top position in Taitung since there are many oceanic migrating fishes attached to Kuroshio current to spawn closed to the coastal in Eastern Taiwan. Also, set net fishing is popular in Taitung. There are two primary factors of catch from set net, the sea-bottom terrain and characteristics of ocean current. In order to examine the relationship between the current and the catch from set net, It has been investigated and analyzed by TOROS with offshore surface current data from set net located in Yilan Nanâao in 2012 to 2015. The study also discussed the movement of Kuroshio along the shoreline of Yilan Nanâao and its correlation with yield in set net. In addition to understand the current characteristics near set net sites, the bottom-mounted multi-layer ADCP were used to measure the flow velocity through the opening of set nets on two sites which were located in both northern and southern of Yilan Nanâao. After the analyzing the current characteristics from those set-net, the relationship between its catch and current can be investigated. The result of from this study indicated as follows: First, according to the analysis of TOROS, Kuroshio mainstream is found about 40 km off to the coastlines of Yilan Nanâao and Hualien Hoping in Eastern Taiwan, the width about 90 km, the average of its surface velocity is 58cm/sec. Second, the possibility of switching in flow direction to west of Kuroshio will increase if the average offshore surface velocity decreases in Nanâao and Hoping. Third. There were more Auxis rochei from set net when the monthly surface velocity of Kuroshio decreased in Nanâao and Hoping. Fourth, the increasing of the yield of Auxis rochei is not correlated with the changing flow direction of Kuroshio. Final, there is no much difference of environmental factors between two set-net for Auxis rochei, while the possibility of increasing yield from southern set net has been investigated after 4 days of the decreasing of its daily mean velocity. Advisors/Committee Members: Shiahn-Wern Shyue (committee member), Chung-Pan Lee (chair), Liou Jen-Ming (chair), Hung-jie Tang (chair), Kuo-Tung Chang (chair).

Subjects/Keywords: catch; ADCP; tidal current; Otoshi-ami set net; Kuroshio

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

APA (6th Edition):

Chen, Y. (2017). The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808117-085212

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):

Chen, Yen-Hsun. “The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao.” 2017. Thesis, NSYSU. Accessed September 20, 2017. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808117-085212.

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

MLA Handbook (7th Edition):

Chen, Yen-Hsun. “The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao.” 2017. Web. 20 Sep 2017.

Vancouver:

Chen Y. The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao. [Internet] [Thesis]. NSYSU; 2017. [cited 2017 Sep 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808117-085212.

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

Council of Science Editors:

Chen Y. The Effect of Current on the Catch of Set Net -A Case Study of Set Net at Nanâao. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808117-085212

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

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