马达加斯加西海岸3种虾类CPUE时空分布及其与环境因子关系  

Temporal and spatial distribution of CPUE in three species of shrimps and its relationship with environmental factors along the west coast of Madagascar

作　　者：马有成 黄斌 张健[1,3,4,5] 王建城[1] 石肖飞 石建高 MA Youcheng;HUANG Bin;ZHANG Jian;WANG Jiancheng;SHI Xiaofei;SHI Jiangao(College of Marine Living Resource Sciences and Management,Shanghai Ocean University Shanghai 201306,China;Representative Office in Madagascar,China National Fisheries Corp.,Mahajanga Madagascar 401;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai Ocean University,Shanghai 201306,China;National Engineering Research Centre for Oceanic Fisheries,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory of Ocean Fisheries Development,Ministry of Agriculture and Rural Affairs,Shanghai Ocean University,Shanghai 201306,China;East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China)

机构地区：[1]上海海洋大学海洋生物资源与管理学院,上海201306 [2]中国水产有限公司马达加斯加代表处,Mahajanga Madagascar 401 [3]大洋渔业资源可持续开发教育部重点实验室,上海海洋大学,上海201306 [4]国家远洋渔业工程技术研究中心,上海海洋大学,上海201306 [5]农业农村部大洋渔业开发重点实验室,上海海洋大学,上海201306 [6]中国水产科学研究院东海水产研究所,上海200090

出　　处：《海洋渔业》2024年第5期540-550,共11页Marine Fisheries

基　　金：农业农村部全球重要鱼种资源监测评估专项;国家重点研发计划项目(2020YFD0900803)。

摘　　要：为了解马达加斯加西海岸虾类的资源分布特征,利用中国水产有限公司马达加斯加代表处2012—2019年拖网渔业生产数据,基于GAM模型分析主要渔获种类(印度白虾Fenneropenaeus indicus、独角新对虾Metapenaeus monoceros和短沟对虾Penaeus semisulcatus)CPUE的时空分布及其与主要环境因子的关系。结果显示:印度白虾的CPUE从三月份开始呈逐月递减的趋势,而独角新对虾和短沟对虾CPUE呈先升后降的趋势;空间上,印度白虾和独角新对虾CPUE在经度上自东向西、纬度上自南向北呈现出逐渐上升的趋势,而短沟对虾CPUE在渔场南北端较高;水深对短沟对虾具有显著的影响(P<0.05);对于各环境因子,径流对独角新对虾和短沟对虾CPUE有显著的正相关关系(P<0.05),降水对印度白虾和短沟对虾CPUE有显著影响(P<0.05),海表面温度对独角新对虾CPUE有显著影响(P<0.05),独角新对虾和短沟对虾CPUE随海面高度距平的增加而显著降低(P<0.05),叶绿素a浓度对3种虾的CPUE均有显著影响(P<0.05)。结果表明,马达加斯加西海岸主捕虾类资源丰度具有明显的时空异质性,易受海洋环境、降水和径流等因素影响。研究结果可为开展该海域渔业资源丰度评估、规范渔业管理、养护渔业资源、保障渔业可持续发展提供科学依据。In this paper,shrimp trawl fishery yield statistics from Representative Office in Madagascar of China National Fisheries Corp.during 2012—2019 were used to analyze the spatial and temporal distribution of CPUE of the main target catch species(Fenneropenaeus indicus,Metapenaeus monoceros and Penaeus semisulcatus)and its relationship with major environmental factors based on generalized additive model(GAM).The fishery production data was first standardized by CPUE,the resolution of environmental data was transformed to get the preprocessed data,and then R software was used to build GAM model.The results showed that the CPUE of F.indicus showed a decreasing trend month by month from March,while CPUE of M.monoceros and P.semisulcatus increased first and then decreased with month.This difference indicated that the reproduction and supplement of the three main shrimp species along the west coast of Madagascar might not be synchronized in time.As a dominant species,F.indicus might reproduce before the other two species.As for spatial distribution,CPUE of F.indicus and M.monoceros increased from south to north in latitude as well as from east to west in longitude.The higher CPUE of P.semisulcatus was found in the north and south section of the fishing ground.In the north-south direction,CPUE of the three shrimp species reflected the trend of high in the north and low in the south,indicating that there was a preference for the distribution of the three main shrimp species in this sea area,and they preferred higher SST in this sea area.Significant effect of depth on CPUE of M.monoceros(P<0.05)was detected,CPUE showed an obvious increasing trend with water depth from shallow to deep.For environmental factors,significant positive correlation was found between runoff on CPUE for M.monoceros(P<0.05)and P.semisulcatus(P<0.05),CPUE of both shrimps increased with the increase of runoff.While significant effect of precipitation on CPUE of F.indicus(P<0.05)and P.semisulcatus(P<0.05)was detected,CPUE of both shrimps increased with

关 键 词：马达加斯加西海岸 拖网 印度白虾 独角新对虾 短沟对虾 CPUE 环境因子 

分 类 号：S931[农业科学—渔业资源]