2000年西南大西洋阿根廷滑柔鱼产量分布及其与表温关系的初步研究

Study on the Distribution of Production of Illex argentinus and Its Relationship with Sea Surface Temperature in the Southwest Atlantic Ocean in 2000

根据2000年中国鱿钓船在西南大西洋的生产统计和表温资料,按经纬度1°×1°进行统计,并用渔业地理信息软件Marine Explorer 4.0进行叠加分析.结果表明,1～5月阿根廷滑柔鱼分布中心集中在45°S、60°W附近海域.各月产量和平均日产量有较大的变动,其中以2～3月为最高.1～5月作业渔场的适宜表温范围为7～14 ℃,并经过K-S检验.但各月的适宜表温有所不同,2月为11～12 ℃,3月为10～12 ℃,4月为8～9 ℃,5月为7～8 ℃.在表温比往年稍偏高的作业海域,有利于渔场的形成和产量提高.

The paper is made based on the databases of Chinese mainland fishing vessel’s production and the sea surface temperatures(SST), and the analysis is followed with the format of 1°×1° latitude and longitude. By the fisheries GIS software Marine Explorer 4.0, it shows that the central production area of Argentine shortfin squid is around the waters between 45°S and 60 °W, but the production and catch per day in different months have relatively fluctuated, and it gets to the higher summit in February and March. The suitable SST in fishing ground is from 7 to 14 ℃, which is tested by K-S Analysis. The suitable SST is variable in different months, 11～12 ℃ in February,10～12 ℃ in March, 8～9 ℃ in April,7～8 ℃ in May. The fishing ground is available to be formed and the catch is improved in the sea areas where the SST is a little more than the historical average level.