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水產研究(1993年創刊)

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  • 點閱: 2095
  • 日期: 2019-07-19
水產研究(1993年創刊)-澎湖東南方南溝海域底拖大型甲殼類群聚結構之研究
主題: 澎湖東南方南溝海域底拖大型甲殼類群聚結構之研究
摘要(中):
本研究計採集到12科40種43,417尾大型甲殼類,主要之優勢種為鬚赤對蝦 (Metapenaeopis barbata) (63.9%)、銀光梭子蟹 (Portunus argentatus) (8.5%)、纖手梭子蟹 (Portunus gracilimanus) (5.7%)、蝦蛄 (Stomatopoda interupta) (4.2%) 等。CPUE值介於114 ~ 10,903 inds./h之間,採集期間以2007年12月份的漁獲尾數10,903尾最高,2008年4月的114尾最低;物種月別之均勻度 (J') 介於0.328 ~ 0.732之間,平均數為0.500 ± 0.120;月別歧異度 (H') 介於0.929 ~ 1.821之間,平均數為1.413 ± 0.330。底拖甲殼類生態使用率EUE值為0.758,丟棄漁獲重量佔總漁獲量的24.2%;甲殼類群聚結構在時間與空間因素上並沒有顯著差異。另由ABC curve指標顯示豐度 (abundance) 曲線在生物量 (biomass) 曲線之上,顯示澎湖東南方海域的底拖漁場漁撈作業壓力大。
出版日期: 2012/12/31
標題title(英): Community Structure of Large Crustacean of Bottom Trawl Around Southeastern Waters in Penghu
作者: 鐘金水‧冼宜樂‧黃文卿‧林綉美‧歐麗榛‧鄭靜怡‧蔡萬生
卷別: 20
期別: 2
頁碼: 11-24
作者 auther(英): Chin-Sui Chung, Yi-Yueh Shean, Wen-Ching Hwang, Shiow-Mei Lin, Lih-Zhen Ou, Jing-Yi Zheng and Wann-Sheng Tsai
摘要abstract(英): A total of 43,417 individual of large crustacean belonging to 12 families and 40 taxa was collected. Four most dominant taxa were Metapenaeopis barbata (63.9%), Portunus argentatus (8.5%), Portunus gracilimanus (5.7%) and Stomatopoda interupta (4.2%). The CPUE ranged from 114 to 10,903 (inds./h) that the maximum occurred in December 2007 and the minimum occurred in April 2008. The monthly indexes diversity were between 0.328 and 0.732 and the average was 0.500 ± 0.120. The evenness were between 0.929 and 1.821 and the average was 1.413 ± 0.330. In addition, ecology utilization ratio EUE value was 0.758, and the weight of discarded fish accounted for 24.2% of total caught. In conclusion, in southeastern waters of Penghu, there was no significant difference in the crustacean group structure between time and space factors. Beside, in southeastern waters of Penghu, ABC curve of the observed station showed that abundance was above on biomass. The study suggested that the bottom trawling had great stress on the ecology of southeastern waters of Penghu.
使用語言: 中文
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