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北部湾主要经济鱼类资源变动分析及保护对策探讨
引用本文:孙典荣,林昭进.北部湾主要经济鱼类资源变动分析及保护对策探讨[J].热带海洋学报,2004,23(2):62-68.
作者姓名:孙典荣  林昭进
作者单位:中国水产科学研究院南海水产研究所,广东,广州,510300
基金项目:广东省自然科学基金项目(49636230)
摘    要:运用北部湾历史上几次底拖网渔业资源调查资料.对14种主要经济鱼类的资源变动情况进行综合分析。结果表明.曾是20世纪60年代底拖网渔获优势种的红笛鲷(Lutjanus sanguineus))、鯻(Therapon theraps)、长棘银鲈(Gerres filamentosus)、黑印真鲨(Carcharhinus menisorrah)和灰裸顶鲷(Gymnocranius griseus)等资源已严重衰竭;二长棘鲷(Parargyrops edita)、长尾大眼鲷(Priacanthus tayenus)、短尾大眼鲷(Priacanthus macracanthus)、白姑鱼(Argyrosomus argentatus)、蓝圆鲹(Decapterus maruadsi)、竹荚鱼(Trachurus japonicus)等种类的资源密度的波动较大:带鱼(Trichiurus haumela)、花斑蛇鲻(Saurida undosquamis)、刺鲳(Psenopsis anomala)等资源虽呈衰退趋势.但资源密度相对较为稳定。并探讨了过度捕捞对不同种类资源变动的影响及渔业资源的保护对策。

关 键 词:经济鱼类  资源变动  北部湾
文章编号:1009-5470(2004)02-0062-07
修稿时间:2002年8月28日

VARIATIONS OF MAJOR COMMERCIAL FISH STOCKS AND STRATEGIES FOR FISHERY MANAGEMENT IN BEIBU GULF
SUN Dian-rong,LIN Zhao-jin.VARIATIONS OF MAJOR COMMERCIAL FISH STOCKS AND STRATEGIES FOR FISHERY MANAGEMENT IN BEIBU GULF[J].Journal of Tropical Oceanography,2004,23(2):62-68.
Authors:SUN Dian-rong  LIN Zhao-jin
Abstract:Based on the data of otter trawl surveys conducted in the Beibu Gulf,variations of major commercial fish stocks were analyzed. The results show that the stocks of Lutjanus sanguineus, Therapon theraps, Gerres filamentosus, Carcharhinus menisorrah and Gymnocranius griseus, which were once the dominant species in the bottom trawl fishery in 1960's, have been depleted; and stocks of Parargyrops edita, Priacanthus tayenus, Priacanthus macracanthus, Argyrosomus argentatus, Decapterus maruadsi and Trachurus japonicus were quite unstable; stocks of Trichiurus haumela, Saurida undosquamis and Psenopsis anomala were relative stable despite showing a declining trend. The effects of over-fishing on stock variations were discussed, and proposals for the fishery management were presented.
Keywords:commercial fish  stock variation  Beibu Gulf  
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