| 莱州湾春季渔业资源及生物多样性的年间变化 |
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| 引用本文： | 金显仕,邓景耀.莱州湾春季渔业资源及生物多样性的年间变化[J].海洋水产研究,1999,20(1):6-12. |
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| 作者姓名： | 金显仕 邓景耀 |
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| 作者单位： | 中国水产科学研究院黄海水产研究所 青岛266071 |
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| 摘 要： | 通过１９８２、１９９３年和１９９８年春季在莱州湾基本相同站位的镀拖网渔业生产调查，分析了生殖群体的生物量，渔获物组成及生物多样性的年间变化。结果表明，生物量呈大幅度下降趋势，１９９８年分别为１９８２年和１９９３年的２．８％和１１．０％，特别是黄鲫和枪乌贼等
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| 关 键 词： | 渔业资源 生物多样性 莱州湾 |
YEARLY VARIATIONS OF FISHERY RESOURCES AND BIODIVERSITY IN THE LAIZHOU BAY |
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| Jin Xianshi,and,Deng Jingyao.YEARLY VARIATIONS OF FISHERY RESOURCES AND BIODIVERSITY IN THE LAIZHOU BAY[J].Marine Fisheries Research,1999,20(1):6-12. |
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| Authors: | Jin Xianshi and Deng Jingyao |
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| Abstract: | Bottom trawl surveys of the Laizhou Bay fishery resources in 1982,1993 and 1998 were carried out. The analysis of biomass, species composition and deversity of fishery resources are analyzed . The results indicated that the biomass dramatically declined in 1998 and was only 2.8% and 11.0% of that in 1982 and 1993, respectively. Particularly, the low level of spawning stock of Japanese anchovy, half-fin anchovy and squid will very adversely affect their recruitment. Although the standing stocks are in a very low level ,the species diversity indices show increase in 1998,indicating a decrease of species dominance. |
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| Keywords: | Fishery resource Biodiversity Laizhou Bay |
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