碩士 / 國立臺灣海洋大學 / 環境生物與漁業科學學系 / 100 / In the present study, we collected catch records, including the date, fish species, and abundance, from 237 commercial fishing vessels operating in the water of Penghu Taiwan ranging 118-120°E and 22.5-24.2°N during Jan-Dec 2010. These fishing vessels were respectively belonged to gillnet (71), pole and lines boote (13), torched-light net fisheries (37), small-medium trawling fishery (82), and porgy and miscellanous fish long line (34). More accurate and reliable fishing position and time of these vessels were further obtained with the aid of VDR (Voyage Data Recorder) installed in these fishing vessels. All these data along with remote sensing-based SST (Sea Surface Temperature) data were utilized to characterize spatial-temporal distribution of fishing activities in the water of Penghu Taiwan.
According to results of the analysis of fishing activity, main targeted fish species varied by different fisheries as follow: Serranidae, Scomberomorus commerson, Dasyatis akajei, Labridae, and Sparidae for porgy and miscellanous fish long line; Clupeidae, Uroteuthis chinensis, Scomber japonicus, Katsuwonus pelamis, and Trachurus japonicus for torched-light net fisheries; Uroteuthis chinensis, miscellanous fish, Psenopsis anomala, Acetes intermedius, and Trichiurus lepturus for small-medium trawling fishery; Sepiidae, Uroteuthis chinensis, Lutjanidae, Drepaneidae, and Sparidae for pole and lines boote fisheries; Scomberomorus commerson, other skipjacks, Katsuwonus pelamis, Small sharks, and Hemiramphidae for gillnet fisheries.
Additionally, spatial-temporal distribution of fishing efforts for each fisheries further revealed fishing grounds also varied by different fisheries as follow: the surrounding water of Penghu Taiwan for porgy and miscellanous fish long line; the western and southern part of the water of Penghu Taiwan for torched-light net fisheries; the northern part of the water of Penghu Taiwan for small-medium trawling fisheries; the southwestern part of the water of Penghu Taiwan for gillnet and pole and lines boote fisheries. For each fisheries, fishing grounds are distribution of the the western part of the water of Penghu Taiwan and front area .
| Identifer | oai:union.ndltd.org:TW/100NTOU5451037 |
| Date | January 2012 |
| Creators | Miao-Chih Hsu, 許妙至 |
| Contributors | Cheng-Hsin Liao, 廖正信 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 91 |
Page generated in 0.0018 seconds