海洋渔业2025，Vol.47Issue(2)：188-201,14.
基于综合科学调查的中西太平洋菲律宾以东公海渔业资源初步分析
Preliminary analysis of fishery resources in the high seas east of the Philippines in the Western and Central Pacific based on comprehensive scientific surveys
摘要
Abstract
Based on comprehensive scientific surveys conducted by the research vessel"Songhang"of Shanghai Ocean University from 2021 to 2023,this paper presented an in-depth preliminary analysis of the quantity,abundance,and species composition of longline fishing catches,fish eggs,and larvae,as well as plankton in the high seas east of the Philippines in the Western and Central Pacific.Altogether 257 survey stations were analyzed over the three years.The longline fishing resource survey yielded a total catch weight of 5 178.13 kg,comprising 364 individuals from 21 species.The primary economic species included Makaira mazara,Thunnus alalunga,T.obesus,T.albacares,Katsuwonus pelamis.The results also revealed spatial variations in the abundance of fish eggs and larvae.A higher abundance of these early life stages was observed in the higher latitude areas,with the peak abundance recorded at 97 ind·1 000 m-3 for fish eggs and 3 359 ind·1 000 m-3 for larvae,indicating that the northern regions of the survey area served as crucial spawning and nursery grounds.The abundance of phytoplankton showed a marked increase with latitude.Higher concentrations were noted in the northwest survey areas compared to the southeast,suggesting a gradient influenced by oceanographic conditions.Environmental parameters measured during the surveys indicated significant variations due to extreme climatic conditions in 2023.Notably,the mixed layer dissolved oxygen saturation was lower in 2023 than that of the preceding years.But sea surface temperature,salinity,and the maximum chlorophyll-a concentration were higher,possibly reflecting changes in oceanic circulation patterns and nutrient availability.The findings can provide valuable scientific references for the sustainable development,utilization,and management of marine fisheries resources in the Western and Central Pacific Ocean.关键词
延绳钓/鱼卵仔稚鱼/浮游动植物/渔业资源/水文环境/独立于渔业的调查/中西太平洋Key words
longline/fish eggs and larvae/plankton/fishery resources/hydrological environment/fisheries independent survey/Central and Western Pacific分类
农业科技引用本文复制引用
淡雅婷,刘必林,叶旭昌,刘志良..基于综合科学调查的中西太平洋菲律宾以东公海渔业资源初步分析[J].海洋渔业,2025,47(2):188-201,14.基金项目
农业农村部全球渔业资源调查监测评估专项(公海渔业资源综合科学调查D-8025-23-1002) （公海渔业资源综合科学调查D-8025-23-1002）
上海市高校特聘教授"东方学者"岗位跟踪计划项目(GZ2022011) （GZ2022011）
