南海主要珊瑚礁水域软骨鱼类的组成与分布  

Composition and Distribution of Chondrichthyes in the Main Coral Reef Waters of the South China Sea

作　　者：舒黎明[1] 李永振[1] 陈国宝[1] 

机构地区：[1]中国水产科学研究院南海水产研究所,广东广州510300

出　　处：《中国海洋大学学报（自然科学版）》2006年第2期277-280,共4页Periodical of Ocean University of China

基　　金：2002年度国家科技基础性工作专项;2003年度国家科技基础条件平台工作重点项目(2003DEA6N042)资助

摘　　要：利用1998年3～5月和1999年5～6月在西沙和南沙的12座珊瑚礁水域渔业资源专业调查资料以及1998年2月～1999年12月在南沙群岛水域进行的渔业资源监测调查资料，分析讨论了南海珊瑚礁水域软骨鱼类的组成与分布。专业调查结果：捕获软骨鱼类14属16种，渔获量计64尾2844．1kg，优势种为大眼角鲨、鼬鲨、日本燕虹、侧条真鲨、灰六鳃鲨；监测调查表明南沙珊瑚礁水域的软骨鱼类在全年均可捕获，产量的变动主要与捕捞努力量相关。综合2种调查知：软骨鱼类在南海珊瑚礁水域总体分布范围较广，单鱼种在各个岛礁表现出一定的地域分布性；南海珊瑚礁区捕获软骨鱼类的主要作业方式为延绳钓和大型流刺网。Based on the data collected from two cruise special surveys and one cruise monitoring survey, the composition and distribution of Chondrichthyes were analyzed. The special surveys were carried out in twelve coral reef waters of the Xisha and Nansha islands from March to May 1998 and May to June 1999 respectively, and the monitoring survey was carried out only in the waters of Nansha Islands from February 1998 to December 1999. The results are as fellows, the number and weight of Chondrichthyes caught in the cruise survey were 64 ind and 2 844kg, which belonged to 16 species 14 groups. The dominant species included Squalus brevirostris, Galeocerdo cuvier, Gyrnnura japonica, Carcharhinus pleurotaenia and Hexanchus griseus. The monitoring survey indicated that Chondrichthyes in the Nansha Islands waters could be captured all the year round, and the yield was mainly related with the fishing effort. It can be seen from these fishery resource surveys that Chondrichthyes are distributed in a majority of the reef coral waters of the South China Sea and there is a zonal character of distribution for special species. The main fishing methods include longlining and largescall gillnetting.

关 键 词：组成 分布 软骨鱼类 珊瑚礁水域 南海 

分 类 号：S932.4[农业科学—渔业资源]