摘要
根据2014−2017年5−11月西北太平洋公海灯光围网日本鲭(Scomber japonicus)生产数据,结合同期的环境遥感数据,分别基于捕捞量和作业次数,构建日本鲭栖息地适宜性指数(Habitat Suitability Index,HSI)模型。选取海表水温、海面高度异常和叶绿素a浓度,采用一元指数回归拟合,建立各个环境变量的适应性指数模型,并利用线性规划方法确定各环境因子的权重,从而提高日本鲭HSI模型对渔场的预报精度。利用2018年5−11月的实际捕捞数据对模型进行预报准确率验证,在基于渔获量和作业次数构建的HSI模型中,HSI大于0.7的海域,渔获量平均占比分别为77.29%、76.79%,这表明基于不同权重环境因子的HSI模型能够较好地预测西北太平洋公海日本鲭中心渔场。
Using fishery data of Scomber japonicus from Chinese light-purse seine fishing on the high seas of theNorthwest Pacific Ocean from May to November during 2014 to 2017, and the environmental remote sensing data,the habitat suitability index (HSI) model of Scomber japonicus was constructed based on fish catch and nos ofhauls, respectively. Applying sea surface temperature, sea level anomaly, chlorophyll a concentration, the suitabilityindex model of each environmental variable was established by one-dimensional exponential regression fitting.The weight of each environmental factor was determined by linear programming method to improve the predictionprecision of HSI model for fishing ground. The prediction accuracy of the HSI model was verified with the actualfishing data from May to November in 2018, and the results showed that in the sea areas with HSI values over 0.7,the fishing catches accounts for 77.29% for HSI model based on fish catch and 76.79% for HSI model based on nosof hauls respectively, which indicates that the HSI model based on different environmental factor weights can betterpredict the central fishing ground of Scomber japonicus on the high seas of the Northwest Pacific Ocean.
作者
范秀梅
唐峰华
崔雪森
杨胜龙
朱文斌
黄良敏
Fan Xiumei;Tang Fenghua;Cui Xuesen;Yang Shenglong;Zhu Wenbin;Huang Liangmin(Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China;Marine Fisheries Research Institute of Zhejiang,Zhoushan 316021,China;Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment,Jimei University,Xiamen 361021,China)
出处
《海洋学报》
CAS
CSCD
北大核心
2020年第12期34-43,共10页
基金
国家重点研发计划(2019YFD0901405)
上海市自然科学基金项目(17ZR1439700)
国家自然科学基金(41606138)
中国水产科学研究院基本科研业务费项目(2018HY-ZD0103)
浙江省远洋渔业资源探捕项目(SZGXZS2019087)
福建省海洋渔业资源与生态环境重点实验室开放基金项目(fjmfre2019003)。
关键词
栖息地适宜性指数
渔场
西北太平洋
日本鲭
habitat suitability index
fishing grounds
the Northwest Pacific Ocean
Scomber japonicus
