中国水产科学2025，Vol.32Issue(7)：970-980,11.DOI:10.12264/JFSC2025-0002
山东近海金乌贼渔场分布及其与捕捞压力和环境因子的关系
Distribution of Sepia esculenta fishery in Shandong coastal waters and its relationship with fishing and environmental factors
摘要
Abstract
As an important fishery resource in the offshore waters of Shandong Province,the fishing ground distribution of Sepia esculenta and its relationships with influencing factors have attracted much attention.This study constructed a generalized additive model(GAM)based on Tweedie distribution to analyze the distribution characteristics of Sepia esculenta fishing grounds in the offshore waters of Shandong Province and their relationships with fishing pressure and environmental factors,using monitoring data of fishery production from 2018 to 2023.The results showed that Sepia esculenta fishing grounds are mainly distributed in the Haizhou Bay fishing grounds and Qinghai fishing grounds in the central Yellow Sea.The center of gravity of the fishing grounds for Sepia esculenta tended to shift northwards annually,and showed a trend moving from northwest to southeast monthly.Through model comparison,the Tweedie GAM model,which includes fishing,environmental,and time factors,had the best fitting effect and predictive performance.Sea bottom salinity,sea bottom temperature,and depth that are suitable for the distribution of Sepia esculenta in autumn are 31-34,16-22 ℃,and approximate 28 m,respectively.The fishing effort of the current year had a positive effect on the catch per unit effort(CPUE)of Sepia esculenta,while the fishing effort of the previous year had a negative effect.This study revealed the impact of external driving factors on the distribution of Sepia esculenta resources,which is of great significance for the rational planning of commercial fishing production,strengthening the scientific management and resource conservation of Sepia esculenta.关键词
金乌贼/渔场分布/山东近海/广义可加模型/Tweedie类分布Key words
Sepia esculenta/fishery distribution/Shandong Province offshore waters/generalized addictive model/Tweedie-like distribution分类
农业科技引用本文复制引用
姜月,张崇良,徐宾铎,纪毓鹏,任一平,薛莹..山东近海金乌贼渔场分布及其与捕捞压力和环境因子的关系[J].中国水产科学,2025,32(7):970-980,11.基金项目
山东省自然科学基金项目(ZR2023MD096). （ZR2023MD096）
