摘要
为了探究靖海湾浮游动物群落结构与环境特征之间的关联机制,分别于2023年5月(春季)和2023年8月(夏季)进行了2个航次的浮游动物及环境因子调查,采用冗余分析(RDA)和Pearson相关性分析的方法,探讨了春季和夏季浮游动物与环境因子间的关系。结果表明:浮游动物共10类38种(春季4类15种,夏季6类23种),其中浮游幼虫在春季和夏季分别达到6种和10种;春季优势种包括太平洋真宽水蚤(Eurytemora pacifica)、捷氏歪水蚤(Tortanus derjugini)和短尾类蚤状幼体(zoea larva brachyura),而夏季优势种为太平洋纺锤水蚤(Acartia pacifica)、捷氏歪水蚤和短尾类蚤状幼体;春季至夏季,靖海湾浮游动物丰度整体呈现显著上升趋势,同时生物量也有较大增加;Pearson相关性分析进一步表明,靖海湾海域浮游动物群落的丰度、生物量、多样性指数(H′)和均匀度指数(J)受到多种环境因子的影响,在春季,磷酸盐、无机氮和水温与多数浮游动物丰度和生物量间呈正相关关系;而在夏季,盐度和溶解氧(DO)与浮游动物丰度呈正相关,叶绿素a(Chl-a)、磷酸盐、无机氮则与丰度呈负相关,盐度与生物量呈正相关,磷酸盐与生物量呈负相关;研究区域浮游动物群落的3种优势种在两个季节对环境因子的响应存在明显差异,春季太平洋真宽水蚤、捷氏歪水蚤和短尾类蚤状幼体与水温、溶解氧、pH值及Chl-a呈正相关;夏季,太平洋纺锤水蚤则与Chl-a、无机氮和磷酸盐呈负相关,捷氏歪水蚤和短尾类蚤状幼体则与磷酸盐、无机氮和盐度间呈负相关关系。研究表明,靖海湾浮游动物的生长受水温等环境因子综合影响,环境胁迫在其生态适应中起重要作用。
We investigated the mechanisms linking zooplankton community structure and environmental characteristics in Jinghai Bay through two data gathering cruises conducted in May 2023(spring)and August 2023(summer).Redundancy analysis and Pearson correlation analysis were used to explore the date gathered.The surveys revealed a total of 38 zooplankton species belonging to ten groups,with 15 species from four groups in spring and 23 species from six groups in summer.The dominant species in spring included Eurytemora pacifica,Tortanus derjugini,and Brachyuran zoea larvae,while the dominant species in summer were Acartia pacifica,T.derjugini,and Brachyuran zoea larvae.The abundance of zooplankton in Jinghai Bay showed a significant increasing trend from spring to summer,accompanied by a notable rise in biomass.Pearson correlation analysis further revealed that the abundance,biomass,H′index,and J index of the zooplankton community were influenced by multiple environmental factors.Specifically,in spring,phosphate,inorganic nitrogen,and water temperature were positively correlated with the abundance and biomass of most zooplankton species.In contrast,during the summer,salinity and dissolved oxygen were positively correlated with zooplankton abundance,while chlorophyll a(Chl-a),phosphate,and inorganic nitrogen were negatively correlated with abundance.In addition,salinity was positively correlated with biomass,whereas phosphate was negatively correlated with biomass.The three dominant species in the zooplankton community in the study area showed different responses to environmental factors between the two seasons.Specifically,in spring,E.pacifica,T.derjugini,and Brachyuran zoea larvae showed positive correlations with water temperature,dissolved oxygen,pH,and Chl-a.In summer,however,A.pacifica showed negative correlations with Chl-a,inorganic nitrogen,and phosphate,while T.derjugini and Brachyuran zoea larva showed negative correlations with phosphate,inorganic nitrogen,and salinity.This study shows that the growth of zooplankton in Jinghai Bay is collectively influenced by environmental factors such as water temperature,with environmental stress playing a significant role in their ecological adaptations.Zooplankton are a crucial component of marine ecosystems and studying the effects of environmental stress on their communities provides valuable insights for monitoring the health status of coastal bay ecosystems.
作者
李明浩
李志祥
张旭志
刘传霞
丁东生
崔正国
曲克明
王庆奎
魏玉秋
LI Minghao;LI Zhixiang;ZHANG Xuzhi;LIU Chuanxia;DING Dongsheng;CUI Zhengguo;QU Keming;WANG Qingkui;WEI Yuqiu(Tianjin Key Laboratory of Aquatic Ecology and Aquaculture,School of Aquatic Sciences,Tianjin Agricultural College,Tianjin 300392,China;National Key Laboratory of Biological Breeding and Sustainable Output of Mariculture,Yellow Sea Fisheries Research Institute,Chinese Academy of Fisheries Sciences,Qingdao 266071,China;Functional Laboratory of Marine Fisheries Science and Food Production Processes,Qingdao Pilot National Laboratory of Marine Science and Technology,Qingdao 266071,China)
出处
《大连海洋大学学报》
2025年第4期655-665,共11页
Journal of Dalian Ocean University
基金
国家自然科学基金(42206103)
山东省自然科学基金(ZR2022QD133)。
关键词
浮游动物
靖海湾
群落结构
环境特征
zooplankton
Jinghai Bay
community structure
environmental characteristics
作者简介
李明浩(1999-),男,硕士研究生。E-mail:liminghao6954@163.com;通信作者:魏玉秋(1991-),男,博士,副研究员。E-mail:weiyuqiu@163.com。
