青岛海洋大学学报(自然科学版)2001，Vol.31Issue(1)：34-38,5.
金枪鱼(Thunnus)延绳钓作业研究
Study on the Tuna Long-Line Fishing——An Instance of Chinese Fleet in Eastern Indian Ocean
摘要
Abstract
This paper reports the situation of the long-line fishi ng whenChina National Fisheries Corporation worked in the eastern Indian Ocean from May, 1997 to May, 1999. The result showed that when calculated by number the yield per month waved from 49 to 175, the highest yield was in September, 1998 and the lowest yield was in May, 1995, the average yield being 116 per boat per year; when calculated by weight (net weight), the yield per month waved from 15 59 to 6306 kg, the highest yield was in Feb.1999, and the lowest yield was in May, 1997. The average yield was 4064 kg per boat per month. The get hooked rate per month fluctuated from 0.47% to 2.28% and the average was 1.02%. There is a prominent difference in boats and months. The average hooks cast by these boats ranged from 5208 to 15558.关键词
印度洋/延绳钓/捕捞努力量/产量/上钓率分类
管理科学引用本文复制引用
叶振江,邢智良,高志军..金枪鱼(Thunnus)延绳钓作业研究[J].青岛海洋大学学报(自然科学版),2001,31(1):34-38,5.基金项目
国家973课题资助 （）
