Wang Wei, Fan Wei, Wu Yumei, Zhang Shengmao, Zhou Weifeng, Fan Xiumei, Shi Jiashu, Jin Weiguo, Wang Guolai, Yang Shenglong
College of Information, Shanghai Ocean University, Shanghai, 201306, China.
Key Laboratory of East China Sea & Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China.
Heliyon. 2024 Jun 19;10(12):e33298. doi: 10.1016/j.heliyon.2024.e33298. eCollection 2024 Jun 30.
To investigate the spatial and temporal patterns of environmental factors influencing the activity of purse seine tuna fishing vessels, data on fishing efforts of purse seine tuna fleets and environmental factors in the Western and Central Pacific Ocean (WCPO) from 2015 to 2020 were utilized to develop a geographically weighted regression (GWR) model. The results showed that fishing activity was primarily concentrated in the area between 140°E and 175°W, and between 10°S and 5°N. The GWR model showed excellent fitting performance and was suitable for correlation analysis. The environmental factors had a significant spatially heterogeneous effect on the fishing activity of purse seine tuna fishing vessels. The sea surface temperature, primary productivity at 200 m depth, and dissolved oxygen below the surface had the greatest spatially heterogeneous effect and are important environmental variables influencing the activity of purse seine tuna vessels in the WCPO. This study provides new methods for exploring the spatial distribution of fishing vessel activity to support science-based conservation and management.
为了研究影响围网金枪鱼捕捞船只活动的环境因素的时空模式，利用2015年至2020年西中太平洋（WCPO）围网金枪鱼船队的捕捞努力数据和环境因素，建立了地理加权回归（GWR）模型。结果表明，捕捞活动主要集中在东经140°至西经175°以及南纬10°至北纬5°之间的区域。GWR模型显示出优异的拟合性能，适用于相关性分析。环境因素对围网金枪鱼捕捞船只的捕捞活动具有显著的空间异质性影响。海面温度、200米深度处的初级生产力以及表层以下的溶解氧具有最大的空间异质性影响，是影响WCPO围网金枪鱼船只活动的重要环境变量。本研究为探索渔船活动的空间分布提供了新方法，以支持基于科学的养护和管理。
