环境因子对黄海鳀鱼亲体-补充量关系影响的初步研究

鱼类年际资源量的波动可以归因于年间环境条件的变化和该种鱼类亲体数量的变化。文章根据1990～2001年间黄海中南部鳀鱼声学调查评估结果,以及黄海千里岩海区在此年间的表层水温和营养盐统计数据,以Ricker模型（R=αSe^-βS）为基础对黄海鳀鱼（Engraulis japonicas）亲体-补充量关系进行了初步研究。结果表明,黄海千里岩水域表层水温、磷酸盐浓度等环境条件因素对补充量有重要影响。

Study of impacts of environmental factors on stock and recruitment relationship of the anchovy stock in the Yellow Sea

Changes in fish year-class strength have been attributed to year-to-year variability in environmental conditions,such as sea surface temperature（SST）and phosphate concentration,and spawning stock biomass（SSB）.In this study,we examined the relationship between environmental factors,SSB and recruitment for the anchovy（Engraulis japonicas）stock in the Yellow Sea using a traditional stock-recruitment Ricker model.The recruitment fluctuation of the anchovy stock in the Yellow Sea was successfully reproduced by the Ricker stock-recruitment model with environmental factors.The findings suggest that the impacts of SST and phosphate concentration observed at the Qianliyan Marine Environment Monitoring Station in the Yellow Sea on the anchovy stock in the Yellow Sea are very important.