自然资源学报 ›› 2001, Vol. 16 ›› Issue (1): 42-46.doi: 10.11849/zrzyxb.2001.01.007

• 论文 • 上一篇    下一篇

渤海越冬场渔业生物资源量和群落结构的动态特征

邓景耀, 金显仕   

  1. 中国水产科学研究院黄海水产研究所, 山东青岛 266071
  • 收稿日期:2000-04-11 修回日期:2000-07-03 出版日期:2001-02-25 发布日期:2001-02-25
  • 作者简介:邓景耀(1933-),男,山东莱州市人,研究员,主要从事黄渤海对虾渔业生物学,种群动态,资源评 估、管理和增殖以及生态系统动态,渔业生物多样性保护和渔业资源持续利用的研究。
  • 基金资助:

    国家自然科学基金重点资助项目(39630260)

Dynamic characteristics of abundance and community structure of fishery species in the overwintering ground of the Bohai Sea

DENG Jing yao, JIN Xian shi   

  1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
  • Received:2000-04-11 Revised:2000-07-03 Online:2001-02-25 Published:2001-02-25

摘要: 根据1983、1993和1999年冬季在渤海越冬场拖网试捕采集的渔获量资料,分析研究了渤海渔业生物地方种群的种类组成、生物量指数和优势种群的年间变化。资源量呈逐年大幅度减少之势,平均网获量分别为115kg/h、35kg/h和07kg/h,平均网获尾数则为669尾/h、145尾/h和37尾/h;群落结构和优势种发生了明显的变化,1983~1993年的优势种群梅童和孔鳐等经济底层鱼类为安氏新银鱼所替代。捕捞过度是经济种群资源量剧减的主要原因,强化渔政管理,开展经济种群的种苗放流是保护、恢复和增殖渔业资源的主要措施和途径。

关键词: 渤海, 越冬场, 渔业生物量, 群落结构, 优势种

Abstract: By the bottom trawl surveys in the overwintering ground of the Bohai Sea in the winter of 1983,1993 and 1999,the yearly variations of species composition,abundance index and dominant species of endemic stocks were analyzed The abundance trended to decrease dramatically,the average catch per haul was 11 5,3 5 and 0 7 kg/h,and average number of individuals per haul was 669,145 and 37 individual/h,respectively The community structure and dominant species obviously changed Those dominant species like Collichthys spp.and Raja porosa in 1983~1993 were replaced by Neosalanx anderssoni in 1999 Overfishing is the main cause for the sharp decrease of abundance in economic important species Strengthening fishery management,and implementing hatchery release are the main measures and approaches to conserving,rehabilitating and enhancing fishery resources in the Bohai Sea

Key words: Bohai Sea, overwintering ground, fishery abundance, community structure, dominant species

中图分类号: 

  • S931.5