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Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean
Small-scale fisheries (SSF) contribute to nearly half of global landings and provide multiple socioeconomic benefits to coastal communities. The Pacific coast SSF represents 37% of the total fisheries landings in Colombia. Scientific literature continually shows that tropical marine habitats are mos...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866063/ https://www.ncbi.nlm.nih.gov/pubmed/35243094 http://dx.doi.org/10.1016/j.heliyon.2022.e08975 |
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author | Selvaraj, John Josephraj Rosero-Henao, Leidy Viviana Cifuentes-Ossa, María Alejandra |
author_facet | Selvaraj, John Josephraj Rosero-Henao, Leidy Viviana Cifuentes-Ossa, María Alejandra |
author_sort | Selvaraj, John Josephraj |
collection | PubMed |
description | Small-scale fisheries (SSF) contribute to nearly half of global landings and provide multiple socioeconomic benefits to coastal communities. The Pacific coast SSF represents 37% of the total fisheries landings in Colombia. Scientific literature continually shows that tropical marine habitats are most vulnerable to oceanic changes associated with climate change. This study prioritized three pelagic species (Euthynnus lineatus, Scomberomorus sierra, and Cynoscion albus) based on their landing statistics to develop potential current and future species distributions using five ensembled machine learning models including Artificial Neural Network (ANN), Maximum Entropy (MaxEnt), Boosted Regression Tree (BRT), Random Forest (RF), and Classification Tree (CT). Future distributions of these species in the medium-term (2050s) and long-term (2080s) were modeled using the Representative Concentration Pathways (RCP) 2.6 and 8.5 emission scenarios for four ensembled General Circulation Models (GCMs) obtained from the Coupled Model Intercomparison Project Phase 5 (CMIP5). In addition, change detections were calculated to identify contraction and expansion of areas, and the distributional core shift was determined to estimate the spatial movements. Results indicate that E. lineatus and S. sierra will potentially move to deeper waters away from the coastline. Alternatively, C. albus could be a species to potentially gain more importance for the fishing sector due to potential variations in climate. These results constitute a critical scientific basis for evaluating the climate change vulnerability of the fishing sector and the decision-making process in the future of small-scale fishery management in the southern Colombian Pacific Ocean. |
format | Online Article Text |
id | pubmed-8866063 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-88660632022-03-02 Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean Selvaraj, John Josephraj Rosero-Henao, Leidy Viviana Cifuentes-Ossa, María Alejandra Heliyon Research Article Small-scale fisheries (SSF) contribute to nearly half of global landings and provide multiple socioeconomic benefits to coastal communities. The Pacific coast SSF represents 37% of the total fisheries landings in Colombia. Scientific literature continually shows that tropical marine habitats are most vulnerable to oceanic changes associated with climate change. This study prioritized three pelagic species (Euthynnus lineatus, Scomberomorus sierra, and Cynoscion albus) based on their landing statistics to develop potential current and future species distributions using five ensembled machine learning models including Artificial Neural Network (ANN), Maximum Entropy (MaxEnt), Boosted Regression Tree (BRT), Random Forest (RF), and Classification Tree (CT). Future distributions of these species in the medium-term (2050s) and long-term (2080s) were modeled using the Representative Concentration Pathways (RCP) 2.6 and 8.5 emission scenarios for four ensembled General Circulation Models (GCMs) obtained from the Coupled Model Intercomparison Project Phase 5 (CMIP5). In addition, change detections were calculated to identify contraction and expansion of areas, and the distributional core shift was determined to estimate the spatial movements. Results indicate that E. lineatus and S. sierra will potentially move to deeper waters away from the coastline. Alternatively, C. albus could be a species to potentially gain more importance for the fishing sector due to potential variations in climate. These results constitute a critical scientific basis for evaluating the climate change vulnerability of the fishing sector and the decision-making process in the future of small-scale fishery management in the southern Colombian Pacific Ocean. Elsevier 2022-02-18 /pmc/articles/PMC8866063/ /pubmed/35243094 http://dx.doi.org/10.1016/j.heliyon.2022.e08975 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Selvaraj, John Josephraj Rosero-Henao, Leidy Viviana Cifuentes-Ossa, María Alejandra Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title | Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title_full | Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title_fullStr | Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title_full_unstemmed | Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title_short | Projecting future changes in distributions of small-scale pelagic fisheries of the southern Colombian Pacific Ocean |
title_sort | projecting future changes in distributions of small-scale pelagic fisheries of the southern colombian pacific ocean |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866063/ https://www.ncbi.nlm.nih.gov/pubmed/35243094 http://dx.doi.org/10.1016/j.heliyon.2022.e08975 |
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