中国海洋大学学报（自然科学版）2025，Vol.55Issue(10)：32-40,9.DOI:10.16441/j.cnki.hdxb.20240254
基于渔获物平均温度指数和营养级指数的海州湾鱼类群落动态变化评估
Assessing the Dynamics of Fish Community in Haizhou Bay Based on the Indices of Mean Temperature of Catch and Trophic Level
摘要
Abstract
To characterize the dynamics of fish community in Haizhou Bay under the influence of ocean warming and overfishing,we analyzed and explored the long-term dynamic trend of the fish community structure in Haizhou Bay and its influencing factors by combining the trends of mean temperature of the catch(MTC)index and three trophic-level related(mean trophic level,fishing-in-balance index,and region-based marine trophic index)based on the fishery resource survey data collected in Haizhou Bay and its adjacent waters in spring and autumn from 2013 to 2022.Bottom sea temperature of Haizhou Bay showed a significant warming trend from 2013 to 2022,and the trend was more obvious in spring.In spring,the MTC index of fish community in Haizhou Bay and the southern part showed a significant increasing trend(P＜0.05).In autumn,the MTC index of fish community in Haizhou Bay and the southern part gradually increased with fluctuation,reflecting the response of fish community in Haizhou Bay to ocean warming.The MTL index of fish community in Haizhou Bay showed a declined trend with fluctuations,and the decrease was significantly smaller in the spring than in the autumn.The FiB and RMTI index indicated that there is no significant sign of overexploitation and migration in and out of fish community in Haizhou Bay.We concluded that the response of fish community to ocean warming in Haizhou Bay has been significant in recent years,and fish resources are still not overexploited with a decrease in high trophic level fish.关键词
渔获物平均温度指数/平均营养级/渔业平衡指数/鱼类群落结构/海州湾Key words
mean temperature of the catch/mean trophic level/fishing-in-balance/fish community structure/Haizhou Bay分类
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蒋圣琪,董秀强,纪毓鹏,徐宾铎,张崇良,任一平,薛莹..基于渔获物平均温度指数和营养级指数的海州湾鱼类群落动态变化评估[J].中国海洋大学学报（自然科学版）,2025,55(10):32-40,9.基金项目
山东省自然科学基金项目(ZR2023MD096) （ZR2023MD096）
国家自然科学基金项目(31772852)资助 Supported by the Shandong Provincial Natural Science Foundation(ZR2023MD096) （31772852）
the National Natural Science Foundation of China(31772852) （31772852）
