【摘要】 对山东近海渔业资源优势种组成、变化，对水温、盐度、营养盐、海水污染、厄尔尼诺现象等非生物环境和初级生产力等生物环境进行了分析，指出：捕捞过度和环境污染导致渔业资源破坏，加上1996年的"暖冬"，是1997年山东近海捕捞生产"春歉"的主要原因。鲐、鲅、因其独特的生物学特性、"暖冬"和栉孔扇贝大量死亡等缘故，’97世代较强，加上海蜇旺发等因，是1997年"秋增"的原因。建议加强资源管理，定额捕捞幼鲐，对鲅"春保秋捕"，加大渤海污染治理力度。更多还原

【Abstract】 The paper rePOrted the study result on the composition and variation of the dominant species of the fishery resource in Shandong offshore, and analyzed the non-biological environment such as water temperature, salinity, nutritious salt, pollution, E1 Nino phenomenon and the biological environment of the primary productivity. It pointed out the principal reason is over fishing and pollution of the environment. As for the catch"reduced in Spring" of 1997 in offshore of Shandong Province, the main cause was the"warm winter"in 1996. And the cause of the catch"increased in Autumn"was due to the special biological characteristics of the chub mackerel, Spanish mackerel and anchovy, "warm winter", death of a number of scallops, multiplication of’ 97 generation and in addition to the rich resource of the jellyfish. The paper also put forward such proposals as strengthening the mangement of the anchovy resource, making a quota for fishing young chub mackerel, "reserving in Spring and fishing in Autumn"of the Spanish mackerels and bringing the pollution in the Bobal under control.更多还原