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http://dx.doi.org/10.5657/KFAS.2021.0329

Seasonal Variations in the Species Composition of Fishes Caught by Gill Net in the Coastal Waters off Gujora and Mangchi on Geoje, Gyeongnam, Korea  

Kim, Kyung Ryul (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, college of Marine Science, Gyeongsang National University)
Nam, Ki Mun (Pukyong Marine Life Research Institute)
Choi, Ok In (Korea Fisheries Resources Agency)
Park, Kyeong Hyeon (Korea Fisheries Resources Agency)
Kim, Byong Seob (Korea Fisheries Resources Agency)
Jang, Uk (Korea Fisheries Resources Agency)
Baeck, Gun Wook (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, college of Marine Science, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.54, no.3, 2021 , pp. 329-339 More about this Journal
Abstract
The monthly variation in species composition of fishes in the Gujora and Mangchi coastal waters in Geoje, Korea, was investigated between June 2018 and May 2019 through monthly fish collections using a gill net. A total of 46 species, numbering 410 individuals weighing a total of 96,645.0 g, were collected during the study period. The dominant species in terms of numbers were Chelidonichthys spinosus, Stephanolepis cirrhifer, Ditrema temmincki, Sillago japonica, Sebastes inermis, and Paraplagusia japonica. The number and biomass of fishes peaked in July. The peak in species diversity indices occurred in September. The cluster analysis revealed that there were four groups of fishes depending on the season. In addition, subtropical fishes were recorded in the study area, indicating the gradual subtropicalization of the coast of Geoje. Furthermore, the need to understand the changes in marine ecosystems owing to subtropicalization through continuous monitoring is emphasized.
Keywords
Species composition; Seasonal variation; Geoje; Gill net;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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