基于Ecopath模型的獐子岛海域生态系统能量流动与功能分析  

Energy flow and function analysis of Zhangzi Island waters ecosystem based on Ecopath model

作　　者：王志林 司立伟 李溢 刘航 WANG Zhilin;SI Liwei;LI Yi;LIU Hang(College of Fisheries and Life Science,Dalian Ocean University,Dalian,116023,Liaoning China;Center for Marine Ranching Engineering Science Research of Liaoning,Dalian Ocean University,Dalian 116023,Liaoning China)

机构地区：[1]大连海洋大学水产与生命学院,辽宁大连116023 [2]辽宁省海洋牧场工程技术研究中心,辽宁大连116023

出　　处：《黑龙江水产》2025年第2期136-143,共8页Northern Chinese Fisheries

摘　　要：根据2022—2023年在獐子岛海域进行的渔业资源与生态环境调查数据,通过Ecopath软件构建了獐子岛海域生态系统食物网模型,分析该海域生态系统结构、能量流动过程及生态系统总体特征。结果显示:獐子岛海域生态通道模型由31个功能组组成,各功能组营养级范围为1~4.24。系统能流量主要分布在5个营养级之间,各营养级之间生物量与物质流通量随营养级的升高而降低,呈典型金字塔分布,该生态系统中系统总流量(TST)为11641.81 t/(km^(2)·a),系统总能量转化效率为13.29%,其中初级生产者能量转化效率为13.35%,碎屑转化效率为13.21%。獐子岛海域生态系统总初级生产量与总呼吸量(TPP/TR)比值为3.15,系统杂食性指数(SOI)为0.19,连接性指数(CI)为0.23。研究表明獐子岛海域生态系统目前正处于发育阶段。Based on the survey data of fishery resources and ecological environment in Zhangzi Island and adjacent waters during 2022—2023,a food web model of Zhangzi Island waters ecosystem was constructed by Ecopath software.Using Ecopath model,we analyzed the structure,the process of energy flow and ecosystem characteristics of the Zhangzi island waters.The results indicated that the Ecopath model of Zhangzi Island waters was composed of 31 functional groups,with the trophic level of each functional group ranged from 1.00~4.24.The energy flow of the system was mainly distributed among the five trophic levels,and the biomass and material flow between the trophic levels decreased with the increase of the trophic level,showing a typical pyramid distribution.Futhermore,the total system throughput(TST)in the ecosystem is 11641.81 t/(km^(2)·a),and the total transfer efficiency(TE)is 13.29%,which primary producers is 13.35%and the detritus is 13.21%.The ratio of total primary production to total respiration(TPP/TR)was 3.15,the system omnivorous index(SOI)was 0.19,and the connectivity index(CI)was 0.23.Through the study of Zhangzi Island waters ecosystem model,we suggest that the Zhangzi Island waters ecosystem is currently in the development stage.

关 键 词：能量流动 食物网 生态系统特征 ECOPATH模型 獐子岛海域 

分 类 号：S932[农业科学—渔业资源]