闽江口鳓鱼生殖群体的生态特性

The Ecological Character of Reproductive Stock of Chinese herring in the Estuary of Minjiang River

报道了闽江口海域鳓鱼的生殖群体结构、生长特性、死亡参数和繁殖、摄食习性等生态学资料。阐述了鳓鱼的捕捞死亡系数、捕捞努力量及单位网产的变化，分析讨论了捕捞努力量对捕捞死亡系数和单位网产的影响。针对目前沿岸定置网作业对鳓鱼幼鱼损害的严重性，指出８～１０月保护鳓鱼幼鱼的重要性。

The structure of reproductive stock, the growth character the mortality parameter and breeding, feeding habits of Chinese herring in the estuary of Mingjang River are reported in this paper . The change of fishing mortality coefficient and the fishing effort, its CPUE of the fish are described. The article also discussed the influence of fishing effort on fishing mortality coefficient and CPUE and pointed out the importance of juvenile fish protection during August to October on considering the existing serious damage to the young fish by set net operation along the coast.