Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model
Anchovy (Engraulis japonicus), a commercially and biologically important fish species in Korean waters, is a small pelagic fish sensitive to environmental change. Future changes in its distribution in Korean waters with significant environmental change remain poorly understood. In this study, we exa...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.922020/full |
| _version_ | 1817994638465695744 |
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| author | Minkyoung Bang Minkyoung Bang Dongwha Sohn Jung Jin Kim Wonkeun Choi Wonkeun Choi Chan Joo Jang Chan Joo Jang Chan Joo Jang Changsin Kim |
| author_facet | Minkyoung Bang Minkyoung Bang Dongwha Sohn Jung Jin Kim Wonkeun Choi Wonkeun Choi Chan Joo Jang Chan Joo Jang Chan Joo Jang Changsin Kim |
| author_sort | Minkyoung Bang |
| collection | DOAJ |
| description | Anchovy (Engraulis japonicus), a commercially and biologically important fish species in Korean waters, is a small pelagic fish sensitive to environmental change. Future changes in its distribution in Korean waters with significant environmental change remain poorly understood. In this study, we examined the projected changes in the seasonal anchovy habitat in Korean waters in the 2050s under three representative concentration pathways (RCPs; RCP 2.6, RCP 4.5, and RCP 8.5) by using a maximum entropy model (MaxEnt). The MaxEnt was constructed by anchovy presence points and five environmental variables (sea surface temperature, sea surface salinity, sea surface current speed, mixed layer depth, and chlorophyll-a concentration) from 2000–2015. Future changes in the anchovy habitat in Korean waters showed variation with seasonality: in the 2050s, during winter and spring, the anchovy habitat area is projected to increase by 19.4–38.4%, while in summer and fall, the habitat area is projected to decrease by up to 19.4% compared with the historical period (2000–2015) under the three different RCPs. A substantial decline (16.5–60.8%) is expected in summer in the East China Sea and the Yellow Sea—main spawning habitat. This considerable decrease in the spawning habitat may contribute to a decline in the anchovy biomass, relocation of the spawning area, and changes in the reproduction timing in Korean waters. Our findings suggest that seasonal variation of the anchovy habitat should be considered to ensure effective future management strategies for the effect of climate change on fisheries resources, particularly for environmentally sensitive species, such as anchovy. |
| first_indexed | 2024-04-14T01:55:38Z |
| format | Article |
| id | doaj.art-c38dccdc7ad341a59299c24cacfd12ec |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-14T01:55:38Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-c38dccdc7ad341a59299c24cacfd12ec2022-12-22T02:19:07ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-08-01910.3389/fmars.2022.922020922020Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy modelMinkyoung Bang0Minkyoung Bang1Dongwha Sohn2Jung Jin Kim3Wonkeun Choi4Wonkeun Choi5Chan Joo Jang6Chan Joo Jang7Chan Joo Jang8Changsin Kim9Ocean Circulation Research Center, Korea Institute of Ocean Science and Technology, Busan, South KoreaOcean Science and Technology School, Korea Maritime and Ocean University, Busan, South KoreaInstitute of Mathematical Sciences, Pusan National University, Busan, South KoreaFisheries Resources Management Division, National Institute of Fisheries Science, Busan, South KoreaOcean Circulation Research Center, Korea Institute of Ocean Science and Technology, Busan, South KoreaDepartment of Ocean Science, University of Science and Technology, Daejeon, South KoreaOcean Circulation Research Center, Korea Institute of Ocean Science and Technology, Busan, South KoreaOcean Science and Technology School, Korea Maritime and Ocean University, Busan, South KoreaDepartment of Ocean Science, University of Science and Technology, Daejeon, South KoreaFisheries Resources Management Division, National Institute of Fisheries Science, Busan, South KoreaAnchovy (Engraulis japonicus), a commercially and biologically important fish species in Korean waters, is a small pelagic fish sensitive to environmental change. Future changes in its distribution in Korean waters with significant environmental change remain poorly understood. In this study, we examined the projected changes in the seasonal anchovy habitat in Korean waters in the 2050s under three representative concentration pathways (RCPs; RCP 2.6, RCP 4.5, and RCP 8.5) by using a maximum entropy model (MaxEnt). The MaxEnt was constructed by anchovy presence points and five environmental variables (sea surface temperature, sea surface salinity, sea surface current speed, mixed layer depth, and chlorophyll-a concentration) from 2000–2015. Future changes in the anchovy habitat in Korean waters showed variation with seasonality: in the 2050s, during winter and spring, the anchovy habitat area is projected to increase by 19.4–38.4%, while in summer and fall, the habitat area is projected to decrease by up to 19.4% compared with the historical period (2000–2015) under the three different RCPs. A substantial decline (16.5–60.8%) is expected in summer in the East China Sea and the Yellow Sea—main spawning habitat. This considerable decrease in the spawning habitat may contribute to a decline in the anchovy biomass, relocation of the spawning area, and changes in the reproduction timing in Korean waters. Our findings suggest that seasonal variation of the anchovy habitat should be considered to ensure effective future management strategies for the effect of climate change on fisheries resources, particularly for environmentally sensitive species, such as anchovy.https://www.frontiersin.org/articles/10.3389/fmars.2022.922020/fullCMIP5 (coupled model intercomparison project phase 5)distributionhabitat suitability index (HSI)small pelagic fishspecies distribution model (SDM)spawning habitat |
| spellingShingle | Minkyoung Bang Minkyoung Bang Dongwha Sohn Jung Jin Kim Wonkeun Choi Wonkeun Choi Chan Joo Jang Chan Joo Jang Chan Joo Jang Changsin Kim Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model Frontiers in Marine Science CMIP5 (coupled model intercomparison project phase 5) distribution habitat suitability index (HSI) small pelagic fish species distribution model (SDM) spawning habitat |
| title | Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model |
| title_full | Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model |
| title_fullStr | Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model |
| title_full_unstemmed | Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model |
| title_short | Future changes in the seasonal habitat suitability for anchovy (Engraulis japonicus) in Korean waters projected by a maximum entropy model |
| title_sort | future changes in the seasonal habitat suitability for anchovy engraulis japonicus in korean waters projected by a maximum entropy model |
| topic | CMIP5 (coupled model intercomparison project phase 5) distribution habitat suitability index (HSI) small pelagic fish species distribution model (SDM) spawning habitat |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.922020/full |
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