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基于2006年1—7月中国鱿钓船在西南大西洋捕获阿根廷滑柔鱼的生产数据及卫星反演的海流、海水表层温度和叶绿素a浓度等海洋环境资料,综合分析了阿根廷滑柔鱼的作业渔场、产量及环境特点.结果表明:西南大西洋存在2个主要的阿根廷滑柔鱼渔场,南部中心位置在60°30′W、45°30′S,北部中心位置在58°00′W、42°00′S,1—7月,作业渔场由南向北移动;不同月份阿根廷滑柔鱼产量的差异较大,其中,1—4月产量较高,最高产量出现在3月,5月之后,其产量逐渐减少;阿根廷滑柔鱼渔场与福克兰寒流流经路径有关,北部渔场位于福克兰寒流的主流上,平均流速为28～60cm·s-1,南部渔场在寒流的西边界处,且其西部伴有一小尺度反气旋涡,平均流速在5～32cm·s-1;阿根廷滑柔鱼渔场的适宜海洋表层温度在7℃～15℃,最适宜温度约12℃,适宜的海水叶绿素a浓度在0.4～1.5mg·m-3,最适宜浓度在0.9～1.2mg·m-3,且海水叶绿素a浓度与捕捞量呈显著正相关关系(P<0.05).
Based on the data of marine catfish harvesting in the Southwest Atlantic from January to July in 2006 and the marine environmental data such as ocean current, surface temperature of seawater and chlorophyll a concentration from satellite inversion, the author analyzed the operation of Argentine slippery fish Fishery, yield and environmental characteristics.The results show that there are two major fishing fields of Castanopsis amphibious fish in the southwestern Atlantic, with the southern central location being 60 ° 30’W and 45 ° 30’S, the northern central location being 58 ° 00’W, 42 From January to July, the operating fishing ground moved from south to north. The differences of output between two months were significant in different months. Among them, the production was higher in January-April and the highest production appeared in March and after May , And its production decreased gradually. The fishing ground of C. glomerata was related to the flow of Falkland’s cold current. The north fishery was located on the mainstream of the Falklands cold current with an average velocity of 28-60 cm · s-1. With a small-scale anti-cyclone vortex in the west, with an average velocity of 5 ~ 32cm · s-1. The suitable sea surface temperature of the reef fish ranged from 7 ℃ to 15 ℃ and the optimum temperature of about 12 ℃ Seawater chlorophyll a concentration of 0.4 ~ 1.5mg · m-3, the most appropriate concentration of 0 .9 ~ 1.2mg · m-3, and there was a significant positive correlation between seawater chlorophyll-a concentration and catches (P <0.05).