摘要
黄海中部深水区存在着一个种数不多,结构简单的冷温性底层鱼类群落。作为底拖网渔业对象的底鱼种数更少。过度捕捞已使这一重要渔场资源密度逐年下降。虽然同样承受着过度捕捞,但是这一水域并没有出现在黄海北部深水区和黄渤海近岸浅水区那样的种间替代。为了使这一渔场得到保护,提前伏季休渔、降低秋冬季捕捞强度及改进捕捞方式已迫在眉睫。
In the deeper area of the middle Yellow Sea (34~37°3o’N),there is a fish community formed by 24 species of cold temperate fishes,As a demersal fishing ground occupied bythe cold water mass, only a few fishes appeared in the demersal catch. Due to over fishing,the population succession did not occur in this area as it did in the deeper area of the northern Yellow Seaand the shallow waters of the Yellow Sea,and the catch per unit effort went down year by year.Fishing control (for example,earller summer closure of the fishing ground) is of crucial impottunce for Ptotecting this fishing ground.
出处
《海洋水产研究》
CSCD
1997年第1期47-53,共7页
Marine Fisheries Research
关键词
黄海中部深水区
渔业资源
保护
底拖网
Deeper area middle Yellow Sea Cold temperatefish Fish community Fishery conservation
