摘要
本文通过对在执行863-AA63-0701课题时收集的东南太平洋竹(竹夹)渔场海洋环境调查资料,分析了竹(竹夹)鱼生产渔场与环境因子的相互关系。结果认为:渔场CPUE的分布与海水表层水温有关,CPUE超过20t的表层水温分别为:5月份:12.4～14.1℃;6月份:11.5～12.8℃;7月份:11.5～12.5℃;在拖速不足的情况下,借助风力和海流可以提高CPUE的产量;竹(竹夹)鱼叉长组成与捕获的时间和海区有关。
Based on the data collected during marine environmental investigation of Chilean jack mackerel (Trachurus murphyi) fishing grounds in the Southeastern Pacific Ocean (Project No. 863 - AA63 - 0701), the paper analyses the relationship between Chilean jack mackerel ( Trachurus murphyi) fishing grounds and environmental factors. It concludes: 1. The distribution of CPUE is related to the marine surface temperature. When CPUE is over 20t/h, the temperature is 12.4 - 14.11 in May, 11.5-12.8t in June and 11.5 - 12.5℃ in July. 2. Wind force and current can increase CPUE in the case of lower trawling speed. 3. The composition of fork length of Chilean jack mackerel has relevance to fishing dates and areas.
出处
《海洋渔业》
CSCD
2003年第1期15-18,共4页
Marine Fisheries
基金
国家863-AA63-0701<大洋渔场环境信息获取和应用技术>
