北部湾棕斑兔头鲀时空分布及其与环境因子的关系  

Spatiotemporal distribution of Lagocephalus spadiceus and the relationship with environmental factors in the Beibu Gulf

作　　者：徐浩 黄亮亮[1,2,3] 王才广 杨伊恒 宋建强 胥鹏 吴志强[1,3] XU Hao;HUANG Liangliang;WANG Caiguang;YANG Yiheng;SONG Jianqiang;XU Peng;WU Zhiqiang(College of Environmental Science and Engineering,Guilin University of Technology,Guilin 541004,Guangxi,China;Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control,Guilin University of Technology,Guilin 541004,Guangxi,China;Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas,Guilin University of Technology,Guilin 541004,Guangxi,China;College of Ocean and Earth Sciences,Xiamen University,Xiamen 361002,Fujian,China;Guangxi Jinggong Marine Science and Technology Co.Ld.,Beihai 536000,Guangxi,China;Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation,Qinzhou 535011,Guangxi,China)

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541004 [2]桂林理工大学广西环境污染控制理论与技术重点实验室,广西桂林541004 [3]桂林理工大学广西岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林541004 [4]厦门大学海洋与地球学院,福建厦门361002 [5]广西精工海洋科技有限公司,广西北海536000 [6]广西北部湾海洋生物多样性养护重点实验室,广西钦州535011

出　　处：《应用生态学报》2025年第3期903-910,共8页Chinese Journal of Applied Ecology

基　　金：广西重点研发计划项目(桂科AB22035050);国家自然科学基金项目(U20A2087);北部湾海洋生物多样性养护重点实验室开放课题(2022KA01)资助。

摘　　要：为探究海洋环境因子对棕斑免头鲀资源分布的影响,根据2022年4月(春季)和8月(秋季)北部湾海域渔业资源和环境调查数据,利用广义加性模型研究休渔期前后棕斑兔头鲀资源分布与海洋环境因子之间的关系。结果表明:北部湾棕斑兔头鲀的资源密度具有明显的时空变化,春季和秋季分别集中在北部湾的中部和北部。影响其资源密度的主要环境因子为叶绿素含量、盐度、pH和纬度,广义加性模型对资源密度的累计方差解释率为91.3%。随着叶绿素含量的增加,棕斑兔头鲀资源密度也随之增加,达到5μg·L^(-1)后,资源密度随叶绿素含量的增加而下降;盐度、pH与资源密度呈现多波峰的非线性关系;纬度与资源密度之间呈线性正相关关系。研究结果可为棕斑免头鲀资源保护提供有效的科学依据。To elucidate the influence of marine environmental factors on the distribution of Lagocephalus spadiceus,we analyzed fisheries and environmental survey data from the Beibu Gulf in April(spring)and August(autumn),2022.We used the generalized additive model(GAM)to examine the relationship between the distribution of L.spadiceus and marine environmental factors,both before and after the implementation of a fishing moratorium.We showed that the density of L.spadiceus in the Beibu Gulf exhibited significant spatio-temporal variation,which concentrated in the central and northern parts of the gulf during spring and autumn,respectively.Such variation in resource density may be attributed to factors such as chlorophyll a content,salinity,pH,and latitude.The GAM accounted for 91.3% of the cumulative variance in resource density.The resource density of L.spadiceus increased with the increases of chlorophyll content,while it began to decrease after chlorophyll reaching 5μg·L^(-1).Both salinity and pH demonstrated a nonlinear relationship with resource density,characterized by multiple peaks,while latitude was positively correlated with resource density.This research provides valuable scientific evidence for the conservation of L.spadiceus resources.

关 键 词：棕斑兔头鲀 广义加性模型(GAM) 资源密度 北部湾 环境因子 

分 类 号：F12[经济管理—世界经济]