Long-term changes in fish community structure in the Bohai Sea, China
Long-term changes in fish community structure in the Bohai Sea, China
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DOI：
10.1016/j.ecss.2003.08.005
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发表时间：
2004
影响因子：
2.8
通讯作者：
Xian-shi Jin
中科院分区：
文献类型：
--
作者：
Xian-shi Jin
通过1959 ~ 1998年4次夏季底拖网调查，描述了渤海鱼类群落结构、生物量和生物多样性的变化。结果表明，渤海海域的群落结构发生了变化，包括优势种、大小谱和多样性。1998年的相对生物量（平均捕获量）分别下降到1959年、1982年和1992年的4.0%、4.3%和3.6%。物种丰富度、多样性和均匀度指数从1982年到1998年下降，这可能是由于高捕捞强度和（或）污染的影响。
Changes in fish community structure, biomass and biodiversity in the Bohai Sea are described from four summer bottom trawl surveys conducted between 1959 and 1998. The results indicate that changes in the community structure, including dominant species, size spectra and diversity, have occurred in the Bohai Sea. The relative biomass (mean catch) in 1998 declined to only 4.0%, 4.3% and 3.6 % of that in 1959, 1982 and 1992, respectively. Indices of species richness, diversity and evenness declined from 1982 to 1998, which might be caused by the effects of high fishing intensity and/or pollution.