Comparative fish community structure among different types of enclosures of estuarine environments  

作　　者：Sunwan Hwang Keun-Hyung Choi 

机构地区：[1]Marine Bio-Resources Research Unit,KIOST,Busan,49111,Republic of Korea [2]Department of Ocean Environmental Sciences,Chung-Nam National University,Daejeon,34134,Republic of Korea

出　　处：《Aquaculture and Fisheries》2022年第3期336-344,共9页渔业学报（英文）

基　　金：This study was partly supported by Chung-nam National University to K-H.Choi;project PG50850 of the Korea Institute of Ocean Science and Technology(KIOST)to S.W.Hwang.

摘　　要：This study explores the differences of fish assemblages in three macrotidal estuaries of Man-gyeong River Estuary(MRE),Geum River Estuary(GRE),and Han River Esturay(HRE)with similar ranges of seasonal water temperature that are diked with different levels of disconnection from freshwater discharge.The distribution of major species in the three estuaries could generally be grouped into three distinctive patterns based on their cumulative distribution with respect to the salinity gradient.The MRE was geographically closer to the GRE than to the HRE,but the fish community of the MRE more closely resembled that of the HRE.Increased freshness of the water inside the dike and the limit of coastal fish to the river may have led to this result.The results provide clues to how enclosure patterns of estuarine waters could affect fish communities over a long-term period.In addition,the information may provide guidance for how a fish community may return once environmental conditions are restored.

关 键 词：Fish community Diking Cumulative distribution ESTUARY Habitat connectivity 

分 类 号：S93[农业科学—渔业资源]