文章摘要
陈芃,陈新军.秘鲁近海秘鲁鳀渔场变化与海洋环境因子的关系[J].上海海洋大学学报,2020,29(4):611-621
秘鲁近海秘鲁鳀渔场变化与海洋环境因子的关系
Relationship between the variation of Peru coastal Engraulis ringens fishing ground and oceanic environmental factors
投稿时间:2019-07-12  修订日期:2019-08-16
DOI:10.12024/jsou.20190702736
中文关键词: 秘鲁鳀  东南太平洋  渔场变化  海洋环境因子
英文关键词: Engraulis ringens  Southeast Pacific Ocean  variations of fishing ground  oceanic environmental factor
基金项目:海洋局公益性行业专项(20155014);上海市科技创新行动计划(14DZ1205000)
作者单位E-mail
陈芃 上海海洋大学 海洋科学学院, 上海 201306  
陈新军 上海海洋大学 海洋科学学院, 上海 201306
青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室, 山东 青岛 266207
大洋渔业资源可持续开发教育部重点实验室, 上海 201306
国家远洋渔业工程技术研究中心, 上海 201306
农业农村部大洋渔业开发重点实验室, 上海 201306 
xjchen@shou.edu.cn 
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中文摘要:
      秘鲁鳀(Engraulis ringens)是栖息于南美洲秘鲁和智利沿岸的小型中上层鱼类,掌握其渔场变化及其与海洋环境因子的关系有利于渔场的开发。根据2005—2014年秘鲁近海秘鲁鳀的渔获数据,结合卫星遥感获得的海表面温度(sea surface temperature,SST)、海表面高度(sea surface height,SSH)和叶绿素a浓度(chlorophyll-a,Chl.a)等环境数据,探讨两个捕捞渔季秘鲁鳀(第一渔季:4—7月;第二渔季11—次年1月)渔场变化及其与海洋环境的关系。研究表明,不同月份秘鲁鳀渔场的适宜海洋环境因子范围不同:第一渔季的渔场SST和适宜SST范围随着月份变低,在第二渔季的渔场SST和适宜SST范围随着月份变高;两个捕捞渔季渔场的适宜SSH均为29~41 cm;第一渔季渔场适宜Chl.a范围随着月份变低,第二渔季渔场适宜Chl.a范围随着月份变高。通过经验累积分布函数检验,海洋环境因子在大多数月份的适宜范围可表征秘鲁近海秘鲁鳀中心渔场的指标。研究表明,要进一步了解秘鲁鳀渔场变化还需注意其资源丰度年间变动及其与海洋环境变化的关系。
英文摘要:
      Anchoveta (Engraulis ringens) is a small pelagic fish living in the coast of Peru and Chile. Understanding the variations of fishing ground and its relationship with oceanic environmental factors is beneficial to resource development. Based on the anchoveta fisheries data along the Peru coast from 2005 to 2014 and the oceanic environmental data including sea surface temperature (SST), sea surface height (SSH) and chlorophyll-a (Chl.a) derived from satellite remote sensing, the variations of fishing ground and its relationship with oceanic environmental factors in the two fishing seasons (the first:April-July; the second:November-next year January) was analyzed. Results showed that the ranges of optimum oceanic environmental factors had differences in each fishing month. There was a decreasing trend of optimum SST range as month passed in the first fishing season and an increasing trend in the second fishing season. Each fishing month in both fishing seasons nearly had the same optimum SSH range (29 cm to 41cm). Optimum Chl.a range showed a decreasing trend in the first fishing season and an increasing trend in the second fishing season. Empirical cumulative distribution function test suggested that the optimum oceanic environmental ranges in most fishing months could be the indicators of central fishing ground. But there was no certain form of catch per unit effort along these factors. The studies indicated that, to better understand the variations of anchoveta fishing ground, we should emphasize the annual variation of stock dynamics and other changes in the ocean environment should be emphasized.
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