摘要
根据2004年9月-2005年4月印度洋西北海域鸢乌贼生产调查资料及海面温度数据，按经纬度1°×1°空间分辨率，采用软件Marine Explorer 4．0和数理统计方法对鸢乌贼作业渔场分布及其与海面温度的关系进行了分析。结果显示，9月-翌年1月作业渔场分布比较分散，分布在11°30’～19°30’N，58°～64°E海域；2—4月作业渔场分布比较集中，主要分布在15°～16°30’N，60°～61°30’E。各月份的平均日产量波动不大。作业渔场的适宜海面温度为25～29℃。经Kruskal-Wallis统计检验，调查期间各个温度组作业CPUE不存在显著性差异。
Based on the catch data and SST data collected during September 2004 to April 2005 in the northwestern Indian Ocean, the fishing ground distribution of Symplectoteathis ouslsniensis in the sea area and its relations to SST are analyzed by using software Marine Explorere 4. 0 and mathematical statistical method. It is shown from the analysis results that the fishing ground during September 2004 to January 2005 was dispersively distributed in the sea area 11°30＇N to. 19°30＇N, 58°E to 64°E, and the fishing ground during Ferbruary to April 2005 was concentratively distributed in the sea area 15°N to 16°30＇N, 60°E to 61°30＇E. The daily mean catches and catch per unit effect （CPUE） in different months showed little fluctuations, and the suitable SST for fishing ground was in the range 25 ℃ to 29 ℃. It is shown from the Kruskal-Wallis statistical test results that there was no significant difference in CPUE in different SST intervals during the investigation period.
出处
《海洋科学进展》
CAS
CSCD
北大核心
2006年第4期546-551,共6页
Advances in Marine Science
基金
农业部公海渔业资源深捕项目---印度洋鸢乌贼资源调查(编号03-42)
上海市教委曙光计划---印度洋西北公海海域鸢乌贼的生物学研究(编号05-11)
上海市重点学科建设项目(T1101)
关键词
鸢乌贼
渔场分布
印度洋西北海域
海面温度
Symplectoteuthis ouslsniensis
fishing ground distribution
northwestern Indian Ocean
sea surface temperature （SST）
