海洋渔业2025，Vol.47Issue(5)：589-598,10.
基于GAM的夏季连云港近海中国毛虾资源丰度与环境因子关系
Relationship between the environmental factors and Acetes chinensis abundance in Lianyungang coastal waters in summer based on GAM
摘要
Abstract
Lianyungang coastal area is the first sea area where total allowable catch system(TACs)of Acetes chinensis is implemented during the summer fishing moratorium in China.It is very important to explore the relationship between the distribution of A.chinensis resources and environmental factors in the sea area for accurately predicting the fishing ground of A.chinensis and formulating the TACs policies.Based on the fishing logs and environmental data(such as longitude,latitude,sea surface temperature,sea surface salinity,total phytoplankton,tidal current and depth)during the TACs project of A.chinensis in Lianyungang coastal waters in 2021,generalized additive model(GAM)was used to explore the variation of catch per unit effort(CPUE)with environmental factors.The results showed that A.chinensis resources in Lianyungang coastal waters displayed a multi-core spatial aggregation in summer,and the areas with high resource abundance were distributed in 120° 04′-120° 13′ E,34° 43′-34° 46′N and 119° 46′-119° 50′ E,34° 44′-34° 45′N.The accumulation of deviance explanation of the GAM model was 55.20％.The factor with the largest deviation explanation was sea surface temperature(17.40％),followed by latitude(13.90％)and longitude(6.80％).Within the sea surface temperature range of 20.0-24.0℃,the CPUE of A.chinensis increased steadily with the increasing temperature;when the temperature was greater than 24.0℃,the CPUE gradually decreased.Moreover,within the range of fishing area,the CPUE of A.chinensis generally increased with the increase of latitude,while the effect of longitude was the opposite.In addition,the CPUE of A.chinensis basically increased with the increase of phytoplankton abundance.And setting nets at low or high tide could effectively increase the CPUE of A.chinensis.The results can be used to further construct the habitat model of A.chinensis in China,and provide a scientific basis for accurately predicting the distribution of its fishing grounds and formulating the management policy of quota fishing.关键词
中国毛虾/限额捕捞/CPUE/环境因子/连云港近海Key words
Acetes chinensis/total allowable catch system/CPUE/generalized additive model/Lianyungang coastal waters分类
农业科技引用本文复制引用
李冬佳,王淑艳,梁龙,李国东,熊瑛,仲霞铭,张琥顺,宋大德,杨帆,康中杰,吴晓睿..基于GAM的夏季连云港近海中国毛虾资源丰度与环境因子关系[J].海洋渔业,2025,47(5):589-598,10.基金项目
江苏省省级农业生态保护与资源利用-渔业生态与资源监测项目(2021-SJ-110-02) （2021-SJ-110-02）
江苏省省级农业生态保护与资源利用-渔业生态与资源监测项目(2022-SJ-061-01) （2022-SJ-061-01）
2022年南通市社会民生重点专项-基于数据仓库技术的长江口及邻近海域捕捞渔情信息系统的研发与应用(MS12022008) （MS12022008）
