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水產研究(1993年創刊)

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  • 點閱: 1712
  • 日期: 2019-05-24
水產研究(1993年創刊)-臺灣北部海域底棲生物群聚結構的季節性差異
主題: 臺灣北部海域底棲生物群聚結構的季節性差異
摘要(中):
本研究利用海富號試驗船於 2008 ~ 2009 年在臺灣北部海域進行底棲魚類拖網作業所得的調查資料,應用群聚結構方法分析本海域底棲生物群聚季節性之差異。調查結果共發現 216 種生物,隸屬於 35 目、100 科、162 屬。按豐度排序,前 14 種物種的累積豐度百分比達 86.21%,其中 145 種的平均體重低於 50 g,這些物種的累積豐度百分比高達 96.11%,生物量百分比為 56.53%;平均體重在 51 ~ 100 g 之間的種類有 27 種,而平均體重大於 100 g 的種類有 44 種。本海域主要優勢種類為七星魚 (Benthosema pterotum)、日本發光鯛 (Acropoma japonicum)、鬚赤對蝦 (Metapenaeopsis barbata)、六絲馬鮁 (Polydactylus sextarius)、中國槍鎖管 (Uroteuthis chinensis) 及日本緋鯉 (Upeneus japonicus) 等。群聚分析法分析結果顯示季節別群聚可分為春夏與秋冬兩群,季節別豐富度以秋季為最高,均勻度與歧異度則以冬季為最高。ABC 曲線結果顯示四季的豐度曲線均高於生物量曲線,顯示拖網漁獲壓力已經影響臺灣北部海域底棲生物群聚。
出版日期: 2014/12/25
標題title(英): Seasonal Differences of Benthic Community Structure in the Northern Waters of Taiwan
作者: 陳威克‧莊世昌‧吳全橙‧吳繼倫‧劉光明
卷別: 22
期別: 2
頁碼: 1-11
作者 auther(英): Wei-Ke Chen, Shih-Chang Chuang, Chuan-Chen Wu, Chi-Lun Wu and Kwang-Ming Liu
摘要abstract(英): The method of cluster analysis was applied to analyze the seasonal differences of benthic community structure in the northern waters of Taiwan based on data collected from R/V Hai Fu, Fisheries Research Institute by bottom trawling from 2008 to 2009. During the survey period, a total of 216 fish species, belonging to 162 genera, 100 families, and 35 orders, were collected. According to the abundance rankings, just 14 species accounted for 86.21% of the total abundance of all fish. The average body weights of 145 species that accounted for 96.11% of the abundance and 56.53% of the biomass were lower than 50 g. In addition, the mean body weights of 27 species were between 51-l00 g, and the mean body weights of 44 species were over 101 g. The dominant species included skinnycheek lanternfish (Benthosema pterotum), glowbelly (Acropoma japonicum), red-spot prawn (Metapenaeopsis barbata), sixfinger threadfin (Polydactylus sextarius), mitre squid (Uroteuthis chinensis), and bensasi goatfish (Upeneus japonicus). Cluster analysis showed seasonal communities can be divided into spring-summer and autumn-winter groups. Seasonal richness peaked in the autumn, but the highest evenness and diversity were in the winter. Results of the ABC method showed that the curves of abundance were all above the curves of biomass in each season, which indicated that the present benthic community structure in the northern waters of Taiwan was influenced by the overcapacity of the bottom trawl fishery.
使用語言: 中文
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