灌河口近岸海域2021年春季渔业资源情况调查  

Survey of fishery resources in the nearshore area of Guanhe Estuary in spring 2021

作　　者：季相星 王娜 曹俊程 李树鑫 JI Xiangxing;WANG Na;CAO Juncheng;LI Shuxin(Jiangsu Lianyungang Environmental Monitoring Center,Lianyungang 222001,China;Lianyungang Biological Engineering Specialized Secondary School,Lianyungang 222001,China)

机构地区：[1]江苏省连云港环境监测中心,江苏连云港222000 [2]连云港生物工程中等专业学校,江苏连云港222000

出　　处：《河北渔业》2023年第8期24-27,共4页

摘　　要：2021年4月对江苏省灌河口近岸海域渔业资源进行调查,共发现渔获物34种,其中鱼类为第一大类群,拉氏狼牙鰕虎鱼(Odontamblyopus lacepedii)为第一优势种。多样性指数范围为2.10~3.91,平均值为2.92,较丰富。渔业资源的资源量均值为122.5 kg/km^(2),资源密度均值为19957.4 ind./km^(2),资源量和资源密度最高的均为鱼类。本次调查获得渔业资源密度远低于2016年,但个体平均体重要远高于2016年。The investigation of fishery resources in the nearshore area of Guanhe Estuary was conducted in April 2021.A total of 34 species of catch were found in this survey,with fish being the largest group and Odontamblyopus lacepedii being the first dominant species.The Shannon-Wiener index of fishery resources ranged from^(2).10 to 3.91,with an average of 2.92,indicating a relatively rich evaluation.The average resource quantity of fishery resources was 122.5 kg/km^(2),and the average resource density was 19957.4 ind./km^(2).Fish had the highest resource quantity and density.The density of fishery resources obtained from this survey was much lower than in 2016,but the average weight of individuals was much higher than in 2016.

关 键 词：灌河口 近岸海域 春季 渔业资源 

分 类 号：S932[农业科学—渔业资源]