Research on the Relationship between Marine Environment with Seafood Exploitation Productivity and Catch per Unit Effort in the Upwelling Area of the South Central Coast of Vietnam  

作　　者：Nguyen Hoang Minh Nguyen Van Huong Vu Thi Van Anh Phan Thi Thuy Duong 

机构地区：[1]Research Institute for Marine Fisheries,Haiphong City 180000,Vietnam [2]Faculty of Hydro-Meteorology and Water resources,Ho Chi Minh City University of Natural Resources and Environment,Ho Chi Minh City 700000,Vietnam

出　　处：《Journal of Environmental Science and Engineering(B)》2024年第6期227-237,共11页环境科学与工程（B）

基　　金：funded by the project on marine fishery survey(02/QĐ-TCTS-KHTC dated March 19,2021,by the Director General of the Fisheries Department,Ministry of Agriculture and Rural Development of Vietnam),the Marine Fisheries Forecast Center,and the Institute of Marine Research,Vietnam.

摘　　要：The analysis of the relationship between oceanographic and environmental factors and fish production and productivity reveals that during the Southwest monsoon season,fish production and productivity are typically higher and more variable compared to the Northeast monsoon season.These metrics exhibit a relatively strong relationship with oceanographic structural variables,with a multiple correlation coefficient of R0=0.56 during the Southwest monsoon season,which decreases to R0=0.4 in the Northeast monsoon season.Specifically,fish production and productivity show a positive correlation with seawater temperature during the Northeast monsoon season,a negative correlation during the Southwest monsoon season,and a negative correlation with salinity in both seasons.Multivariate regression analysis further highlights a significant relationship between marine resource productivity and various oceanographic and environmental factors.Notably,factors such as Tday(Bottom Water Temperature),H0,PHY(Phytoplankton),and ZOO(Zooplankton)demonstrate high pairwise correlation coefficients with fish production and are positively correlated with each other.Additionally,fishing productivity peaks in areas with low flow speeds(20-40 cm/s)and regions characterized by alternating cyclonic and anticyclonic circulations.

关 键 词：Seafood productivity marine environment upwelling zone the South-Central Vietnam. 

分 类 号：P73[天文地球—海洋科学]