Ecology of inshore notothenioid fish from the Danco Coast, Antarctic Peninsula
Ecology of inshore notothenioid fish from the Danco Coast, Antarctic Peninsula
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DOI：
10.1007/s00300-002-0463-y
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发表时间：
2003-03-01
期刊：
影响因子：
1.7
通讯作者：
Ramón, A
中科院分区：
文献类型：
--
作者：
Casaux, R;Barrera-Oro, E;Ramón, A
2000年2月和3月，在西南极半岛丹科海岸的Cierva点（莫斯岛1;莫斯岛2; Sterneck岛; Leopardo岛）周围的4个地点，用网栅共捕获了1 103条近岸脊索鱼类。样品中有Nototheniidae、Bathyichthyidae和Bathydraconidae，Notothenia coriiceps是该地区的优势鱼类。其次是赤背鳅和纽氏吸虫。总体而言，采样的鱼类在数量和质量方面与南设得兰群岛地区的鱼类一致，除了G.丹科海岸的赤霉这支持了一个假设，即20世纪70年代末南设得兰群岛周围的商业渔业是导致近海G.在过去的17年里在那个地区发现了赤霉。提供了关于所捕鱼种的形态、繁殖和饮食的资料。
A total of 1,103 inshore notothenioid fish were caught by means of trammel-nets in 4 sites surrounding Cierva Point (Moss Island 1; Moss Island 2; Sterneck Island; Leopardo Island), Danco Coast, West Antarctic Peninsula, during February and March 2000. The families Nototheniidae, Channichthyidae and Bathydraconidae were represented in the samples, Notothenia coriiceps being the dominant fish of the area. Gobionotothen gibberifrons and Trematomus newnesi followed in importance. In general, the fish sampled agreed in terms of number and mass with those of the South Shetland Islands area, except for a marked higher occurrence of G. gibberifrons in the Danco Coast. This supports the hypothesis that the commercial fishery around the South Shetland Islands at the end of the 1970s was responsible for the decrease in the inshore population of G. gibberifrons in that area during the last 17 years. Information on morphometry, reproduction and diet of the fish species caught is provided.