查詢結果分析
相關文獻
- Comparison of the Catch Compositions of the Shrimp Beam Trawl Fishery in the Three Areas off the Southwestern Coast of Taiwan
- Examining on the Bycatch and Discard Catch of the Shrimp Beam Trawl Fishery in the Coastal Waters off Chiayi, Southwest Taiwan
- 樣區面積對四種常用種歧異度指數影響之探討
- 南臺灣不同地區貝類之生物相似度及生物地理學分析
- Genetic Diversity and Population Structure of Gleditsia Japonica var.Koraiensis in Korea
- 關刀溪非繁殖季鳥類同功群之研究
- 新化林場柚木林之植群結構分析
- Shannon生態系歧異度指數之介紹與應用--以惠蓀林場紅檜人工林與闊葉樹次生林為例
- 七家灣溪櫻花鉤吻鮭棲地環境之改善分析
- Variation in Heat Shock Protein Synthesis and Genomic Diversity in the Natural Population of Aspergillus Fumigatus in Northern Taiwan
頁籤選單縮合
題 名 | Comparison of the Catch Compositions of the Shrimp Beam Trawl Fishery in the Three Areas off the Southwestern Coast of Taiwan=臺灣西南三海域之蝦拖網漁獲組成之比較 |
---|---|
作 者 | 陳朝清; 周耀烋; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 28:4 2001.12[民90.12] |
頁 次 | 頁287-303 |
分類號 | 439.66 |
關鍵詞 | 椼桿式蝦拖網; 混獲; 上市漁獲; 拋棄漁獲; 漁獲組成; 歧異度; Shrimp beam trawl; Bycatch; Landed catch; Discarded catch; Catch composition; Diversity; |
語 文 | 英文(English) |
中文摘要 | 為解析台灣三個主要蝦桁拖網之作業海區,比較其上市及拋棄漁獲物之組成,於1997年∼2000年間,於三地區租用商業漁船於area A (布袋-七股海域)、B(台南市海域)、C(屏東東港海域)分別進行80、62、93網次之試驗。本研究於area A、B、C,分別發現142、105、118種生物,三海區全年度均有出現者有10種。蝦類之優勢漁獲種於area A、B、C分別為Parapenaeopsis cornuta(角突彷對蝦)、Metapenaeopsis barbata(鬚赤對蝦)及M. barbata。各季節之優勢種在area B全年均以M. barbata佔絕對優勢,area A 以P.cornuta為主,area C則較分散。以歧異度分析各漁獲魚種之間的關係,得知area C之種類較多樣化,歧異度亦大,魚種分布較均勻,area B則相反。經分析其漁獲物之單位努力漁獲量CPUE (g/(haul*hour)),蝦及魚類以area B為最高,蟹、頭足類及螺類則以area C為最高。Duncan 的多重比較顯示無論蝦、蟹均以area C和其他兩海區有顯著差異,而魚類以area B和其他海區有顯著不同。以拋棄與所有漁獲量之比值而言,魚、蝦類均以area C為最高,頭足類則以area A為最高。 本研究所得之結論如下:台灣西南海域之蝦桁拖網在較淺水深處之漁獲種類較水深處多,各優勢種之產量則以較深海區為大量。 |
英文摘要 | In order to compare the catch compositions of shrimp beam trawlers in the main fishing areas of the southwest Taiwan waters, the landed and discarded catches of 80, 62, and 93 hauls in three areas, area A (Putai to Chiku), area B (Tainan city), and area C (Tungkang) collected from the years of 1997 to 2000 were analyzed. There are 142, 105, and 118 species in area A, B, and C, respectively and ten of which can be found in the three areas all the year round. The dominant shrimp species in the three areas were Parapenaeopsis cornuta, Metapenaeopsis barbata and M. barbata, respectively. P. cornuta in area A; yet, it’s insignificant in area C. Diversity indices showed that the area C had the highest species richness and diversity, and had more species evenness; whereas, the above situation in area B was on the contrary. The highest CPUE (g/(haul×hour)) of shrimp and finfish were found in area B, while that of crab, cephalopods and shellfish were in area C. With Duncan’s test, shrimp and crab in area C were significantly different from the other two areas, and finfish was significantly different from areas A and C. The highest ratio of discarded shrimp and fish to all catch was in area C, and that of cephalopods was in area A. From this study, we found the catches of the shrimp beam trawlers in the shallow waters were more than those in the deep waters; yet, more dominant species were found in the deep waters. |
本系統中英文摘要資訊取自各篇刊載內容。