烟台大学学报（自然科学与工程版）2026，Vol.39Issue(1)：63-71,9.DOI:10.13951/j.cnki.37-1213/n.250404
基于GAM的海阳近海三疣梭子蟹资源丰度与环境因子的关系
Relationship between Abundance of Portunus trituberculatus in Haiyang Offshore Area and Environmental Factors Based on GAM
摘要
Abstract
Based on survey data of Portunus trituberculatus in the Haiyang offshore area from 2010 to 2024 and corresponding environmental data—including sea surface temperature(SST),salinity(Sal),dissolved oxygen concentration(DO),and chlorophyll-a concentration(Chl-a)from May to August each year—we employed a Generalized Additive Model(GAM)to analyze the relationship between P.trituberculatus abundance and these four key environmental factors.The results revealed that the total deviance explained by the GAMs ranged from 62.8%to 80.4%across the months,with the highest explanatory power(80.4%)in May,indicating that environ-mental conditions in May had the strongest influence in August P.trituberculatus abundance.Among the environ-mental variables in May,SST contributed the most(44.8%)to the model's explanatory power.The study suggests that environmental factors of the May,particularly SST,are critical in predicting August P.trituberculatus abun-dance,providing a scientific basis for forecasting crab populations using early-season environmental indicators.关键词
三疣梭子蟹/资源丰度/海洋环境因子/GAM/海阳近海Key words
Portunus trituberculatus/resource abundance/marine environmental factor/GAM/Haiyang offshore area分类
农业科技引用本文复制引用
GONG Yuanting,ZHAO Guoqing,ZHANG Yuqin,TANG Yongzheng,WANG Zhiyang..基于GAM的海阳近海三疣梭子蟹资源丰度与环境因子的关系[J].烟台大学学报（自然科学与工程版）,2026,39(1):63-71,9.基金项目
山东省渔业资源调查与监测项目(37000022P11000111802T). （37000022P11000111802T）
