Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait

This study examined the effect of the intrusion of the Kuroshio Current (KC) into the South China Sea (SCS) and the Taiwan Strait (TS) (SCS–TS region) on changes in catches of larval <i>A. japonica</i> in the traditional fishing ground waters of Gaoping near southwestern Taiwan in the SC...

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Main Authors: Ching-Hsien Ho, Long-Jing Wu, Zhen Lu, Bo-Yi Lu, Yang-Chi Lan
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/9/12/1465
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author Ching-Hsien Ho
Long-Jing Wu
Zhen Lu
Bo-Yi Lu
Yang-Chi Lan
author_facet Ching-Hsien Ho
Long-Jing Wu
Zhen Lu
Bo-Yi Lu
Yang-Chi Lan
author_sort Ching-Hsien Ho
collection DOAJ
description This study examined the effect of the intrusion of the Kuroshio Current (KC) into the South China Sea (SCS) and the Taiwan Strait (TS) (SCS–TS region) on changes in catches of larval <i>A. japonica</i> in the traditional fishing ground waters of Gaoping near southwestern Taiwan in the SCS–TS region. First, the oceanic environment and recruitment trends from 1967 to 2019 were investigated based on secondary data. Then, field surveys were conducted to obtain primary data regarding the intrusion of the KC into the SCS, as well as the changes in the fishing sites and catches of <i>A. japonica</i> in the fall and winter of 2014–2015. Hence, the association between oceanic conditions and the number of <i>A. japonica</i> migrating into the SCS–TS region was explored. From 1967 to 2019, the recruitment proportion in the fishing grounds that formed due to the Kuroshio Branch Current (PKSBC) fluctuated significantly. Overall, positive values were observed for the Oceanic Niño Index for each year with a PKSBC > 50%, corresponding to El Niño conditions. In each year with a PKSBC > 70%, a looping path and a warm–core eddy appeared.
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spelling doaj.art-ed72db52899c48c5986c7af1ff5327402023-11-23T09:04:09ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-12-01912146510.3390/jmse9121465Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan StraitChing-Hsien Ho0Long-Jing Wu1Zhen Lu2Bo-Yi Lu3Yang-Chi Lan4Department of Fisheries Production and Management, Sustainable Fisheries Development Research Center, National Kaohsiung University of Science and Technology, Kaohsiung 811, TaiwanOcean Conservation Administration, Ocean Affairs Council, Kaohsiung 806, TaiwanGraduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, JapanDepartment of Fisheries Production and Management, Sustainable Fisheries Development Research Center, National Kaohsiung University of Science and Technology, Kaohsiung 811, TaiwanCoastal and Offshore Resource Research Center, Fisheries Research Institute, Council of Agriculture, Executive Yuan, Kaohsiung 806, TaiwanThis study examined the effect of the intrusion of the Kuroshio Current (KC) into the South China Sea (SCS) and the Taiwan Strait (TS) (SCS–TS region) on changes in catches of larval <i>A. japonica</i> in the traditional fishing ground waters of Gaoping near southwestern Taiwan in the SCS–TS region. First, the oceanic environment and recruitment trends from 1967 to 2019 were investigated based on secondary data. Then, field surveys were conducted to obtain primary data regarding the intrusion of the KC into the SCS, as well as the changes in the fishing sites and catches of <i>A. japonica</i> in the fall and winter of 2014–2015. Hence, the association between oceanic conditions and the number of <i>A. japonica</i> migrating into the SCS–TS region was explored. From 1967 to 2019, the recruitment proportion in the fishing grounds that formed due to the Kuroshio Branch Current (PKSBC) fluctuated significantly. Overall, positive values were observed for the Oceanic Niño Index for each year with a PKSBC > 50%, corresponding to El Niño conditions. In each year with a PKSBC > 70%, a looping path and a warm–core eddy appeared.https://www.mdpi.com/2077-1312/9/12/1465Japanese eelsea surface temperature anomalyfield studyKuroshio CurrentKuroshio Branch Currentsatellite remote sensing
spellingShingle Ching-Hsien Ho
Long-Jing Wu
Zhen Lu
Bo-Yi Lu
Yang-Chi Lan
Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
Journal of Marine Science and Engineering
Japanese eel
sea surface temperature anomaly
field study
Kuroshio Current
Kuroshio Branch Current
satellite remote sensing
title Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
title_full Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
title_fullStr Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
title_full_unstemmed Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
title_short Potential Effect of the Intrusion of the Kuroshio Current into the South China Sea on Catches of Japanese Eel (<i>Anguilla Japonica</i>) in the South China Sea and Taiwan Strait
title_sort potential effect of the intrusion of the kuroshio current into the south china sea on catches of japanese eel i anguilla japonica i in the south china sea and taiwan strait
topic Japanese eel
sea surface temperature anomaly
field study
Kuroshio Current
Kuroshio Branch Current
satellite remote sensing
url https://www.mdpi.com/2077-1312/9/12/1465
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