Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water

This study aimed to evaluate the effects of water temperature and catch frequency on biodiversity and distribution in the waters around Korea. We analyzed spatiotemporal catch data reported by fishermen and evaluated the fluctuations in the dominantly caught species based on the timing of the water...

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Main Authors: Hyithaek Ceong, Inyeong Kwon
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/15/9/1212
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author Hyithaek Ceong
Inyeong Kwon
author_facet Hyithaek Ceong
Inyeong Kwon
author_sort Hyithaek Ceong
collection DOAJ
description This study aimed to evaluate the effects of water temperature and catch frequency on biodiversity and distribution in the waters around Korea. We analyzed spatiotemporal catch data reported by fishermen and evaluated the fluctuations in the dominantly caught species based on the timing of the water temperature changes between 1999 and 2021. This study found an upward trend in the water temperature, and species diversity increased in the East, West, and South Seas after the water temperature changed. Relatively stable species diversity was maintained in the East Sea/Sea of Japan, although variability increased significantly in the West and South Seas. The distribution in the caught species showed that <i>Octopodidae</i> spp. and <i>Ommastrephidae</i> spp. were increasingly caught more consistently alongside <i>Pleuronectidae</i> spp. Moreover, this dominance was maintained even after the change in water temperature and was shown to be relatively less sensitive to water temperature changes.
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spelling doaj-art-e111376a43e04dbb86ee78734685f87a2025-08-20T02:30:45ZengMDPI AGAnimals2076-26152025-04-01159121210.3390/ani15091212Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean WaterHyithaek Ceong0Inyeong Kwon1Department of Multimedia, Chonnam National University, Yeosu 58754, Republic of KoreaDepartment of Smart Fisheries Resource Management, Chonnam National University, Yeosu 59626, Republic of KoreaThis study aimed to evaluate the effects of water temperature and catch frequency on biodiversity and distribution in the waters around Korea. We analyzed spatiotemporal catch data reported by fishermen and evaluated the fluctuations in the dominantly caught species based on the timing of the water temperature changes between 1999 and 2021. This study found an upward trend in the water temperature, and species diversity increased in the East, West, and South Seas after the water temperature changed. Relatively stable species diversity was maintained in the East Sea/Sea of Japan, although variability increased significantly in the West and South Seas. The distribution in the caught species showed that <i>Octopodidae</i> spp. and <i>Ommastrephidae</i> spp. were increasingly caught more consistently alongside <i>Pleuronectidae</i> spp. Moreover, this dominance was maintained even after the change in water temperature and was shown to be relatively less sensitive to water temperature changes.https://www.mdpi.com/2076-2615/15/9/1212species diversityspecies dominanceclimate changemarine ecosystemwater temperature
spellingShingle Hyithaek Ceong
Inyeong Kwon
Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
Animals
species diversity
species dominance
climate change
marine ecosystem
water temperature
title Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
title_full Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
title_fullStr Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
title_full_unstemmed Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
title_short Spatiotemporal Changes in Catch Composition of Marine Species Across Seawater Temperature Shift Points in Korean Water
title_sort spatiotemporal changes in catch composition of marine species across seawater temperature shift points in korean water
topic species diversity
species dominance
climate change
marine ecosystem
water temperature
url https://www.mdpi.com/2076-2615/15/9/1212
work_keys_str_mv AT hyithaekceong spatiotemporalchangesincatchcompositionofmarinespeciesacrossseawatertemperatureshiftpointsinkoreanwater
AT inyeongkwon spatiotemporalchangesincatchcompositionofmarinespeciesacrossseawatertemperatureshiftpointsinkoreanwater