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东南太平洋智利竹■鱼渔场分布及其与海表温关系的研究
A study on correlation of fishing ground distribution of jack mackerel (Trachurus murphyi) versus SST in the southeast Pacific Ocean
【摘要】 根据2005年3月至2006年1月我国大型拖网加工渔船在东南太平洋的生产资料,结合海表温数据,按经纬度1°×1°的空间单位进行分析,利用Marine Explorer 4.0软件作图,研究作业渔场CPUE分布与海表温的关系。结果表明,适宜作业海表温为12~15℃,月平均CPUE呈正态分布:8月最高,为11.34 t/h;6~9月均超过7.00 t/h,密集鱼群区域分布在34°~40°S,79°~92°W,其海表温范围为13~15℃;10月平均CPUE为6.08 t/h,其表温范围为14~17℃;其余各月平均CPUE均不超过4.30 t/h。CPUE与适宜海表温关系通过K-S的检验。
【Abstract】 According to the production database from March 2005 to January 2006 of Chinese trawler fishing vessels with the statistic format of 1°×1°,the plot is drawn by the software of Marine Explorer 4.0.Correlation of fishery distribution of jack mackerel versus SST is analyzed.The suitable SST was 12-15 ℃,and the average CPUE by month obeys the normal distribution with the peak of 11.34 t/h in August.From June to September the monthly average CPUE was at least 7.00 t/h. The fishing ground concentrated in the area of 34°-40° S and 79°-92° W with SST 13-15 ℃.The average CPUE in October was just 6.08 t/h with SST 14~17 ℃.The average CPUE of other months was less than 4.30 t/h.The relation between CPUE and suitable SST passed the K-S test.
【Key words】 Trachurus murphyi; fishing ground; CPUE; SST; K-S test;
- 【文献出处】 上海水产大学学报 ,Journal of Shanghai Fisheries University , 编辑部邮箱 ,2006年04期
- 【分类号】S931.4
- 【被引频次】48
- 【下载频次】220