中国水产科学2025，Vol.32Issue(1)：74-82,9.DOI:10.12264/JFSC2024-0235
深海散射层在南印度洋长鳍金枪鱼栖息地研究中的应用
Study on the habitat suitability of south Indian Ocean albacore tuna based on the deep scattering layer
摘要
Abstract
This study used a generalized additive model(GAM)and habitat suitability indices to study the relationship between the Indian Ocean albacore tuna(Thunnus alalunga)habitat and the deep scattering layer based on the fishing yield data,acoustic survey data,sea surface temperature and chlorophyll-a concentration from 2011 to 2020 in the south Indian Ocean.A comparative analysis was conducted on the effects of different environmental factors on the habitat suitability index of albacore tuna.The GAM results showed that the deviance explanations of the combination of deep scattering layer,sea surface temperature,and chlorophyll concentration were the highest at 42.60％.The highly suitable areas(HSI＞0.6)for the habitat of albacore tuna were generally distributed between 20°S and 35°S.The highest correlation between the high HSI level(HSI＞0.6)of the combination of deep scattering layer and sea surface temperature and the yield of albacore tuna in 2021 was 0.542.The results suggested that the deep scattering layer improved the variance explained by environmental factors on the yield of albacore tuna and had a high correlation with high catch areas.This study provided a new reference for the distribution of Indian Ocean albacore tuna resources.关键词
长鳍金枪鱼/深海散射层/栖息地指数/南印度洋Key words
Thunnus alalunga/deep scattering layer/habitant suitability/south Indian Ocean分类
水产学引用本文复制引用
万树杰,李国栋,陈新军..深海散射层在南印度洋长鳍金枪鱼栖息地研究中的应用[J].中国水产科学,2025,32(1):74-82,9.基金项目
国家重点研发计划课题项目(2023YFD2401304) （2023YFD2401304）
海南省科技计划三亚崖州湾科技城科技创新联合项目(2021CXLH0004) （2021CXLH0004）
国家自然科学基金项目(32073026) （32073026）
崂山实验室科技创新项目(LSKJ202201801). （LSKJ202201801）
