基于垂直水温的中国东海日本鲭生境适宜性分析  

Habitat Suitability of Chub Mackerel Scomber japonicus in the East China Sea based on Vertical Water Temperature

作　　者：倪泳一 温健 李宜锴 余为[2,3,4,5] 吴峰 NI Yongyi;WEN Jian;LI Yikai;YU Wei;WU Feng(Ping TAI RONG Ocean Fishery Group Co.,Ltd.,Zhoushan 316100,China;College of Marine Living Resource Sciences and Management,Shanghai Ocean University,Shanghai 201306,China;National Engineering Research Center for Oceanic Fisheries,Shanghai 201306,China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306,China;Key Laboratory of Oceanic Fisheries Exploration,Ministry of Agriculture and Rural Affairs,Scientific Observing and Experimental Station of Oceanic Fishery Resources,Ministry of Agriculture and Rural Affairs,Shanghai 201306,China)

机构地区：[1]平太荣远洋渔业集团有限公司,浙江舟山316100 [2]上海海洋大学海洋生物资源与管理学院,上海201306 [3]国家远洋渔业工程技术研究中心,上海201306 [4]大洋渔业资源可持续开发教育部重点实验室,上海201306 [5]农业农村部大洋渔业开发重点实验室,农业农村部大洋渔业资源环境科学观测实验站,上海201306

出　　处：《水产科学》2025年第2期264-273,共10页Fisheries Science

基　　金：农业农村部全球鱼种监测项目(D-8025-23-1001).

摘　　要：日本鲭为海洋中上层重要的经济鱼种,探索气候变化对其生境的影响,能为日本鲭资源管理提供科学依据。依据太平洋年代际涛动指数及1977—2015年2.5、25.0、50.0m水层温度数据,计算东海日本鲭生境适宜性指数,对比分析太平洋年代际涛动不同时期内东海日本鲭的生境时空变动。结果表明,太平洋年代际涛动指数与各水层温度距平值呈显著负相关关系。太平洋年代际涛动冷期内,日本鲭渔场各水层温度距平值较高,适宜的温度范围较广,2.5m和50.0m水层适宜的温度面积比例明显高于太平洋年代际涛动暖期,2.5m水层不适宜的温度面积比例明显低于太平洋年代际涛动暖期,各水层温度适宜性指数重心向西北方向偏移。相较于太平洋年代际涛动暖期,太平洋年代际涛动冷期内生境适宜性较高,适宜生境面积比例较高,不适宜生境面积比例较低,渔场的经度重心偏西,纬度重心偏北。研究表明,太平洋年代际涛动冷暖位相转换显著地影响东海日本鲭的生境分布变动。The impact of climate variability on the habitat of chub mackerel Scomber japonicas,an economically important pelagic fish species,can be exploited to provide scientific references for resources management.In this study,the habitat suitability index(HSI)on the fishing ground of chub mackerel was calculated in the East China Sea based on the environmental data of vertical water temperature at depths of 2.5 m,25.0 m and 50.0 m and the Pacific decadal oscillation(PDO)index from 1977 to 2015.The spatio-temporal distributions of potential habitat of chub mackerel were compared among the different phases of PDO.The results showed that the anomalies of water temperature at different depths were significantly positively correlated with the PDO index.During the cold PDO,the anomalies of water temperature at different depths tended to be high,the range of suitable areas of water temperature tended to be more,the ratio of suitable areas of water temperature at 2.5 m and 50.0 m was obviously higher than that during the warm PDO,the ratio of unsuitable areas of water temperature at 2.5 m was significantly lower than that during the warm PDO,and the gravity center of the suitable index of water temperature at different depths shift northwestward.Compared to the warm PDO,the habitat suitability and the ratio of suitable habitat were higher,the ratio of unsuitable habitat was lower,the longitudinal gravity center of suitable habitat shift westward and the latitudinal gravity center of suitable habitat shifted northward during the cold PDO.The findings indicate that the warm and cold PDO regime shift yield significant impacts on variations in habitat distribution of chub mackerel in the East China Sea by changing the vertical water temperature on the fishing ground.

关 键 词：日本鲭 太平洋年代际涛动 不同水层温度 生境分布变化 

分 类 号：S931.3[农业科学—渔业资源]