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Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape
Gear restrictions are an important management tool in small-scale tropical fisheries, improving sustainability and building resilience to climate change. Yet to identify the management challenges and complete footprint of individual gears, a broader systems approach is required that integrates ecolo...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6529422/ https://www.ncbi.nlm.nih.gov/pubmed/31113956 http://dx.doi.org/10.1038/s41467-019-10051-0 |
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author | Exton, Dan A. Ahmadia, Gabby N. Cullen-Unsworth, Leanne C. Jompa, Jamaluddin May, Duncan Rice, Joel Simonin, Paul W. Unsworth, Richard K. F. Smith, David J. |
author_facet | Exton, Dan A. Ahmadia, Gabby N. Cullen-Unsworth, Leanne C. Jompa, Jamaluddin May, Duncan Rice, Joel Simonin, Paul W. Unsworth, Richard K. F. Smith, David J. |
author_sort | Exton, Dan A. |
collection | PubMed |
description | Gear restrictions are an important management tool in small-scale tropical fisheries, improving sustainability and building resilience to climate change. Yet to identify the management challenges and complete footprint of individual gears, a broader systems approach is required that integrates ecological, economic and social sciences. Here we apply this approach to artisanal fish fences, intensively used across three oceans, to identify a previously underrecognized gear requiring urgent management attention. A longitudinal case study shows increased effort matched with large declines in catch success and corresponding reef fish abundance. We find fish fences to disrupt vital ecological connectivity, exploit > 500 species with high juvenile removal, and directly damage seagrass ecosystems with cascading impacts on connected coral reefs and mangroves. As semi-permanent structures in otherwise open-access fisheries, they create social conflict by assuming unofficial and unregulated property rights, while their unique high-investment-low-effort nature removes traditional economic and social barriers to overfishing. |
format | Online Article Text |
id | pubmed-6529422 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-65294222019-05-23 Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape Exton, Dan A. Ahmadia, Gabby N. Cullen-Unsworth, Leanne C. Jompa, Jamaluddin May, Duncan Rice, Joel Simonin, Paul W. Unsworth, Richard K. F. Smith, David J. Nat Commun Article Gear restrictions are an important management tool in small-scale tropical fisheries, improving sustainability and building resilience to climate change. Yet to identify the management challenges and complete footprint of individual gears, a broader systems approach is required that integrates ecological, economic and social sciences. Here we apply this approach to artisanal fish fences, intensively used across three oceans, to identify a previously underrecognized gear requiring urgent management attention. A longitudinal case study shows increased effort matched with large declines in catch success and corresponding reef fish abundance. We find fish fences to disrupt vital ecological connectivity, exploit > 500 species with high juvenile removal, and directly damage seagrass ecosystems with cascading impacts on connected coral reefs and mangroves. As semi-permanent structures in otherwise open-access fisheries, they create social conflict by assuming unofficial and unregulated property rights, while their unique high-investment-low-effort nature removes traditional economic and social barriers to overfishing. Nature Publishing Group UK 2019-05-21 /pmc/articles/PMC6529422/ /pubmed/31113956 http://dx.doi.org/10.1038/s41467-019-10051-0 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Exton, Dan A. Ahmadia, Gabby N. Cullen-Unsworth, Leanne C. Jompa, Jamaluddin May, Duncan Rice, Joel Simonin, Paul W. Unsworth, Richard K. F. Smith, David J. Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title | Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title_full | Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title_fullStr | Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title_full_unstemmed | Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title_short | Artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
title_sort | artisanal fish fences pose broad and unexpected threats to the tropical coastal seascape |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6529422/ https://www.ncbi.nlm.nih.gov/pubmed/31113956 http://dx.doi.org/10.1038/s41467-019-10051-0 |
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