碩士 / 國立臺灣海洋大學 / 環境生物與漁業科學學系 / 96 / We segregated those boats returned to port within 24 hours from the in-port and out-port database (2004-2005) maintained in the Coast Guard Administration to analyze fishing activities in Northern Taiwan. Accumulation number of trip and duration by gear, time, GRT and ports where computed to discuss the temporal and spatial characteristics of six major fisheries. The results are as follows:
1) The annual average trips was 36 for long line, 152 for torch light trip, 55 for gill net, 104 for pole and lines trip, 51 for trawl and 717 for set net.
2) There were two patterns of distribution on the time while boats leave and return the ports, namely bimodal and unimodal patterns. Long line, torch light net, gill net and pole and line were the formal while the trawl and set nets were the latter.
3) The annual average number of boats operating at sea within one day was 764. The highest month(=971) was in May and the lowest(=570) was in February. The seasonality among fisheries was significant.
4) If the amount of fishing activity per unit shore distance (hour.GRT/km) represented fishing pressure along the coast, most of them were widely distributed in all coastline section except for trawl net and set net only located in specific coastline section. Meanwhile, the fishing activities in the coastline sections of Northern Taiwan Strait and Ilan Bay were relatively high compared with other sections in the study area.
This study describes the factual status of fishing activities using Security Check Database, which has been proven to be different from static registration data maintained in Fishery Agency. Such result will be helpful for coastal fishery measures or sampling survey in the future.
| Identifer | oai:union.ndltd.org:TW/096NTOU5451002 |
| Date | January 2008 |
| Creators | Kuo-Tong Huang, 黃國棟 |
| Contributors | Hsueh-Jung Lu, 呂學榮 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 83 |
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