石臼港区近岸海域春季游泳动物群落结构浅析  

Analysis on Community Structure of Nekton in the Coastal Waters of Shijiu Port in Spring

作　　者：王尽文 黄娟[1,2] 孙滨 朱丽岩[3] 张亮 张乃星[1,2] WANG Jin-wen;HUANG Juan;SUN Bin;ZHU Li-yan;ZHANG Liang;ZHANG Nai-xing(Shandong Provincial Key Laboratory of Marine Ecology and Environment & Disaster Prevention and Mitigation, Qingdao 266061, China;North China Sea Marine Forecasting Center, SOA, Qingdao 266061, China;College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China)

机构地区：[1]山东省海洋生态环境与防灾减灾重点实验室,山东青岛266061 [2]国家海洋局北海预报中心,山东青岛266061 [3]中国海洋大学海洋生命学院,山东青岛266003

出　　处：《海岸工程》2020年第3期224-230,共7页Coastal Engineering

基　　金：国家重点研发计划资助项目--黄海浒苔绿潮立体化监测和预警预报技术(2016YFC1402103)和海水总氮总磷在线监测仪器研制及产业化(2017YFC1403700)。

摘　　要：根据2016年5月(春季)在日照港石臼港区近岸海域进行的游泳动物调查资料,分析了该海域的游泳动物资源群落结构特征。调查海域捕获游泳动物45种(鱼类30种、甲壳类11种、头足类4种),尾数资源密度为70.19×103 ind/km2,重量资源密度为731.10 kg/km2。优势种类主要为方氏云鳚(Enedrias fangi)、双斑蟳(Charybdis bimaculata)、口虾蛄(Oratosquilla oratoria)、长丝虾虎鱼(Cryptocentrus filifer)。渔业生物群落的丰富度指数1.74~4.12,平均为2.63;多样性指数1.42~2.54,平均为1.94;均匀度指数0.50~0.78,平均为0.65。和2012年5月相同海域的调查结果相比,本次调查游泳动物种类减少3种,资源尾数密度下降76.39%,资源重量密度下降34.28%。The characteristics of community structure of nekton in the coastal waters of Shijiu Port are analyzed based on the data obtained during the surveys carried out in the study area in May(spring)2016.Totally,45 species of nekton are collected in the study area,which include 30 species of fish,11 species of crustaceans and 4 species of cephalopods.The individual density of resources is 70.19×103 ind/km2 and the weight density of resources is 731.10 kg/km2.The dominant species in the study area are mainly Enedrias fangi,Charybdis bimaculata,Oratosquilla oratoria and Cryptocentrus filifer.The richness indexes of fishery biota(D)are 1.74~4.12,with the average being 2.63;the diversity indexes(H′)are 1.42~2.54,with the average being 1.94;and the evenness indexes(J′)are 0.50~0.78,with the average being 0.65.Compared with those obtained in May 2012,the species of nekton collected in May 2016 reduce by 3 species,the individual density of resources decreases by 76.39%and the weight density of resources goes down by 34.28%.

关 键 词：日照港 渔业资源 群落结构 优势种 

分 类 号：S931[农业科学—渔业资源]