Seasonal Spatial Distribution Patterns of the Sand Crab Ovalipes punctatus (De Haan 1833) in the Southern Yellow and East China Seas and Predictions from Various Climate Scenarios
文献类型： 外文期刊
作者： Xu, Min 1 ; Ling, Jianzhong 1 ; Zheng, Haisu 2 ; Song, Xiaojing 1 ; Liu, Zunlei 1 ; Li, Huiyu 1 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab Fisheries Remote Sensing, Minist Agr & Rural Affairs, Shanghai 200090, Peoples R China
2.Shanghai Aquat Wildlife Conservat & Res Ctr, Shanghai 200080, Peoples R China
关键词： stock assessment; aquatic animals; conservation; exploitation; crab species; total allowable catch; fishery policy; overfish
期刊名称：BIOLOGY-BASEL （ 影响因子：3.5； 五年影响因子：4.0 ）
ISSN：
年卷期： 2025 年 14 卷 8 期
页码：
收录情况： SCI
摘要： In the past two decades, little information has been updated to understand the resource status of the crab species Ovalipes punctatus in the East China Sea Region. In this study, we conducted surveys in 2018 and 2019 to identify the seasonal spatial distribution patterns of the economically important sand crab Ovalipes punctatus (De Haan 1833) in the southern Yellow and East China Seas. In the study area, the largest biomass of crabs was observed in the fishing grounds of Dasha and the Yangtze River mouth, and the second largest biomass was detected in the Jiangwai-Zhouwai area. Seasonally, the total biomass order in these areas was summer > autumn & winter > spring, and the mean average individual weight order was spring & summer > winter > autumn. These findings provided maps of the seasonal spatial distribution pattern of the species across seasons, which were then used in climate-change scenario models. Model predictions suggested that O. punctatus might migrate northward and offshore under climate warming conditions, and that the climate scenario SSP585-2100 might be the most negative case, respectively, for the habitat area of gain% minus loss%. These data can be used to develop robust and systematic regional fisheries resource management policies that consider adaptation measures to address the impact of environmental and climate change along China's coasts and other areas in the world.
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