本文利用MTSAT卫星数据反演的海表温度资料和美国航空航天局(NASA)提供的叶绿素含量数据以及全国海洋捕捞信息动态采集网络采集的围网船只的船位数据,对2012年在24°~36°N、120°~130°E范围内的东海及黄海部分海域表层水温和叶绿素含量分布状况及其对鲐鱼(Scomber japonicas)、鲹鱼(Decapterus maruadsi)渔场分布的影响进行了初步的分析和研究.结果表明:(1)2012年黄、东海表层水温呈现出秋冬海表温度偏低,而春夏偏高的态势,沿岸流区域秋冬季平均偏低约0.5℃,春夏季平均偏高约1.5℃,暖流区域秋冬季平均偏低约0.9℃,春夏季平均偏高约1.2℃;(2)研究海域的叶绿素含量的分布与海流流域有关;(3)利用渔船船位来间接表示渔场的位置移动是可行的.
In this paper, sea surface temperature (SST) retrieved from MTSAT data, chlorophyll-a concentration(CHL) data provided by National Aeronautics and Space Administration(NASA) and ship - position data collected by National Marine Fishing Information Collection Network were used to analyze the distribution of SST and CHL in the East China Sea (24° - 36° N, 120° - 130° E ) and their effects on the distribution of fishing grounds of common Japanese mackerel ( Scomber japonicus) and round scad ( Decapterus maruadsi) in 2012. The results showed that: a) The SST was lower in autumn and winter while it was higher in spring and summer in 2012. The SST in inshore areas in autumn and winter was about 0.5 ℃ lower than that of normal, and in spring and summer it was about 1.5 ℃ higher than that of normal. In the areas with the warm currents, the SST in autumn and winter was about 0.9 ℃ lower than that of normal, and in spring and summer it was 1.2 ℃ higher than that of normal; b)The distribution of CHL was related with the currents in the research area; c) It was viable to represent the position of fishing grounds indirectly with the ship position.