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西南大西洋阿根廷滑柔鱼是我国鱿钓船船队重要的捕捞对象,准确预测中心渔场可以为科学地指导渔业生产提供依据。根据2000-2005年1-5月主渔汛期间我国鱿钓船队在西南大西洋海域的鱿钓生产数据,结合遥感获得的表温及叶绿素a数据,分别将作业次数百分比和单位渔船日产量作为适应性指数。利用算术平均法建立基于表温和叶绿素a因子的栖息地指数(HSI)模型。利用2005年1-5月生产数据及环境资料对HSI模型进行验证,分析认为作业渔场主要分布在HSI大于0.6海域,其作业次数比重达到76%以上,各月平均日产量均在7.2 t/d以上。研究表明,基于表温和叶绿素a的HSI模型能较好预测西南大西洋阿根廷滑柔鱼中心渔场,预报准确率在70%以上。
Southwest Atlantic Argentina smooth squid is our country squid fishing fleet important fishing target accurately predict the center of fisheries can provide scientific basis for guiding fishery production. According to the squid fishing production data of China’s squid fishing fleet in the Southwest Atlantic Ocean from January to May in the period of January to May of 2000-2005 and the data of table temperature and chlorophyll a obtained from remote sensing, Sex index. Habitat Index (HSI) model based on ephemeral chlorophyll a was established by using arithmetic average method. The HSI model was validated by production data and environmental data from January to May 2005. The analysis indicated that the operating fishing grounds were mainly distributed in areas with HSI greater than 0.6 and the number of operations was over 76%. The average daily output of each period was 7.2 t / d the above. The results show that the HSI model based on the ephemeral chlorophyll a can predict the fishing ground of C. glomerata in the Southwest Atlantic. The prediction accuracy is over 70%.