Composition of fish species in the Bering and Chukchi Seas and their responses to changes in the ecological environment
Composition of fish species in the Bering and Chukchi Seas and their responses to changes in the ecological environment
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DOI：
10.1007/s13131-014-0490-x
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发表时间：
2014-06-01
影响因子：
1.4
通讯作者：
Shao Kwang-tsao
中科院分区：
文献类型：
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作者：
Lin Longshan;Chen Yongjun;Shao Kwang-tsao
根据2010年中国北极科考期间在白令海和楚科奇海进行的拖网调查，对鱼类组成、优势种、生物多样性和区系特征等进行了研究。我们还讨论了鱼类对北极气候快速变化的反应。结果表明，该水域共记录有14科41种。优势种为粗体金枪鱼、北极星天牛、天蝎、蚕豆轮虫和结节轮虫。冷水植物35种，占85.37%，冷温带植物6种，占14.63%。鱼类栖息地类型可分为：35种底层鱼类、5种深海鱼类和1种中上层鱼类。Shannon-Wiener多样性指数(H‘)不高(0~2.18，平均1.21)，自南向北递减。气候变化导致一些鱼类在北极和亚北极地区的纬向和经度分布发生转移，这可能导致北极渔业资源的下降。
Based on trawl surveys in the Bering Sea and Chukchi Sea during the 2010 Chinese National Arctic Research Expedition, fish biodiversity characteristics, such as fish composition, dominant species, biodiversity, and faunal characteristics were conducted. We also discussed the responses of fishes to the quick changes in Arctic climate. The results showed that a total of 41 species in 14 families were recorded in these waters. The dominant species were Hippoglossoides robustus, Boreogadus saida, Myoxocephalus scorpius, Lumpenus fabricii, and Artediellus scaber. There were 35 coldwater species, accounting for 85.37%, and six cold temperate species, occupying 14.63%. The habitat types of fish could be grouped as follows: 35 species of demersal fishes, five benthopelagic fishes, and one pelagic fish. The Shannon-Wiener diversity index (H') (range between 0 and 2.18, 1.21 on average) was not high, and descended from south to north. Climate change has caused some fishes to shift along their latitudinal and longitudinal distribution around the Arctic and Subarctic areas, and this could lead to the decline of Arctic fishery resources.