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根据在智利 2 0 0海里专属经济区外海的渔场周年探捕调查 ,对智利竹鱼 (Trachurusmur phyi)单位努力量渔获量 (CPUE)的构成和季节变化及其资源分布特征进行了初步探讨。结果显示 ,竹鱼在智利外海分布广 ,30°～ 43°S ,78°～ 87°W海区均可形成拖网作业渔场。南半球冬季竹鱼密集分布区较偏南 (38°～43°S) ,8月密集分布区向北偏移至 35°～ 40°S,春季鱼群继续向北洄游至 30°～35°S ,并开始分散索饵 ,集群性较差 ,到翌年秋季再集群向南洄游 ,在 38°～ 43°S ,78°～ 85°W形成越冬场。CPUE以冬季最高 ,春、秋季次之 ,夏季最低。冬季以 6月份平均CPUE最高 ,达 1 5 .1 8t/h ,夏季以 3月份平均CPUE最低 ,仅 1 .1 2t/h。
Based on the survey of fisheries annual surveys in a sea area outside the 200-nautical-mile exclusive economic zone of Chile, the composition and seasonal variation of the effort harvested catch (CPUE) and the distribution of resources in the Trachurusmur phyi unit in Chile were discussed . The results showed that the bamboo-fish belonged to a wide distribution in the Chilean off-shore, and trawling fishing grounds could be formed in the sea areas of 30 ° ~ 43 ° S and 78 ° ~ 87 ° W. In the southern hemisphere, the distribution of bamboo and fish in winter is more concentrated in the south (38 ° ~ 43 ° S) and in August it is northward to 35 ° -40 ° S. In spring, the fish continue to migrate northward to 30 ° -35 ° S, and began to disperse the bait, poor clustering, and then to the following autumn fall clusters migrate south, forming a winter field at 38 ° ~ 43 ° S, 78 ° ~ 85 ° W. CPUE highest in winter, spring and autumn followed, the lowest in summer. In winter, the average CPUE in June was the highest, reaching 15.1 t / h. In summer, the average CPUE in March was the lowest, only 1.12 t / h.