水生生物学报2026，Vol.50Issue(9)：162-174,13.DOI:10.3724/1000-3207.2026.2026.0065
江苏近海秋季棘头梅童鱼资源时空分布变动及其环境驱动因素
SPATIOTEMPORAL VARIATIONS IN THE AUTUMN RESOURCE OF COLLICHTHYS LUCIDUS IN THE COASTAL WATERS OF JIANGSU AND THEIR ENVIRONMENTAL DRIVERS
摘要
Abstract
Identifying the spatiotemporal distribution of coastal fish resources and their environmental associations is essential under the combined effects of climate change and intensified human activities.Based on bottom trawl survey data collected in autumn from 2021 to 2023 and multi-source satellite-derived environmental data,this study used generalized additive models(GAMs)and random forest(RF)models to analyze the spatiotemporal distribution patterns of Collichthys lucidus in the coastal waters of Jiangsu,China,and its relationships with major marine environmental factors,and to reconstruct its suitable habitat distribution during autumn from 2018 to 2023.The results showed that both resource biomass and resource abundance exhibited pronounced interannual variability,characterized by high values in 2021,a marked decline in 2022,and recovery in 2023.High-value areas were consistently concentrated in the Yangtze River estuary and the shallow nearshore waters of central and southern Jiangsu.Model comparison indicated that the resource abundance index provided a more stable representation of environmental responses.After considering predictive performance,response-variable suitability,and the need for ecological interpretation,GAM was selected as the working model for autumn habitat reconstruction.Water depth,sea surface temperature,sea surface salinity,meri-dional current velocity,zonal current velocity,and eddy kinetic energy were identified as the major environmental factors influencing the autumn distribution of C.lucidus.Habitat reconstruction suggested that its distribution remained concentrated in nearshore waters.These findings provide scientific support for coastal fishery resource assessment and spatially explicit management.关键词
适宜栖息地/广义加性模型/遥感数据/时空分布/环境因子/资源评估/棘头梅童鱼Key words
Habitat suitability/Generalized additive model/Remote sensing/Spatiotemporal distribution/Environ-ment factors/Resource assessment/Collichthys lucidus分类
农业科技引用本文复制引用
张虎,田浩,刘阳,陈冰清,贲成恺,张芮,祖凯伟,袁健美,胡海生,肖悦悦,祝超文..江苏近海秋季棘头梅童鱼资源时空分布变动及其环境驱动因素[J].水生生物学报,2026,50(9):162-174,13.基金项目
渔业生态与资源监测项目(2024-SJ-100) （2024-SJ-100）
中国博士后科学基金(187202) （187202）
南通市自然科学基金(JC2025084)资助[Supported by the Fisheries Ecology and Resource Monitoring Program(2024-SJ-100) （JC2025084）
China Postdoctoral Science Foundation(187202) （187202）
Natu-ral Science Foundation of Nantong Municipality(JC2025084)] （JC2025084）
