Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia)
A basic input for implementing ecosystem-based management measures is the knowledge on fish assemblages exploited by multispecies fisheries, such as the set gill net artisanal fishery in the Gulf of Salamanca (GoS), Caribbean Sea (Colombia), which catches a large number of high-value demersal speci...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2020-03-01
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| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3041 |
| _version_ | 1797279565166411776 |
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| author | Carlos Salazar-Pérez Eduardo Choles-Rodríguez Luis Manjarrés-Martínez |
| author_facet | Carlos Salazar-Pérez Eduardo Choles-Rodríguez Luis Manjarrés-Martínez |
| author_sort | Carlos Salazar-Pérez |
| collection | DOAJ |
| description |
A basic input for implementing ecosystem-based management measures is the knowledge on fish assemblages exploited by multispecies fisheries, such as the set gill net artisanal fishery in the Gulf of Salamanca (GoS), Caribbean Sea (Colombia), which catches a large number of high-value demersal species. Assemblages of this type were identified in this study, and significant differences (P < 0.01) between sampling periods (2008 and 2013) and seasons were found by means of a two-way permutational multivariate analysis of variance. These results were consistent with those obtained with the principal coordinates analysis, indicating the occurrence of short-term structural changes in these assemblages. Interannual and seasonal variations in discriminant and typifying species were also identified using similarity percentages, and a decreasing trend in landing per unit effort was established by the bootstrap method. On the other hand, both the geographic location of the fishing grounds and the characterization of historical changes in the set gill nets used in the GoS were determined using the traditional ecological knowledge of local fishermen, who reported a decrease in mesh sizes. In conclusion, temporal variations could be related to changes in the gill nets, the fishing trip schedules, and the spatial distribution of fishing effort, all which occurred in response to the decrease in catch rates in traditional fishing grounds.
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| first_indexed | 2024-03-07T16:26:54Z |
| format | Article |
| id | doaj.art-b9fc885eb50d4a6999bb61565f628fa5 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:26:54Z |
| publishDate | 2020-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-b9fc885eb50d4a6999bb61565f628fa52024-03-03T17:34:23ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532020-03-0146110.7773/cm.v46i1.3041Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia)Carlos Salazar-Pérez0Eduardo Choles-Rodríguez1Luis Manjarrés-Martínez2Universidad del MagdalenaUniversidad del MagdalenaUniversidad Nacional Autónoma de México A basic input for implementing ecosystem-based management measures is the knowledge on fish assemblages exploited by multispecies fisheries, such as the set gill net artisanal fishery in the Gulf of Salamanca (GoS), Caribbean Sea (Colombia), which catches a large number of high-value demersal species. Assemblages of this type were identified in this study, and significant differences (P < 0.01) between sampling periods (2008 and 2013) and seasons were found by means of a two-way permutational multivariate analysis of variance. These results were consistent with those obtained with the principal coordinates analysis, indicating the occurrence of short-term structural changes in these assemblages. Interannual and seasonal variations in discriminant and typifying species were also identified using similarity percentages, and a decreasing trend in landing per unit effort was established by the bootstrap method. On the other hand, both the geographic location of the fishing grounds and the characterization of historical changes in the set gill nets used in the GoS were determined using the traditional ecological knowledge of local fishermen, who reported a decrease in mesh sizes. In conclusion, temporal variations could be related to changes in the gill nets, the fishing trip schedules, and the spatial distribution of fishing effort, all which occurred in response to the decrease in catch rates in traditional fishing grounds. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3041managementfishing geartraditional ecological knowledgefishing effortPRIMER |
| spellingShingle | Carlos Salazar-Pérez Eduardo Choles-Rodríguez Luis Manjarrés-Martínez Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) Ciencias Marinas management fishing gear traditional ecological knowledge fishing effort PRIMER |
| title | Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) |
| title_full | Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) |
| title_fullStr | Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) |
| title_full_unstemmed | Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) |
| title_short | Short-term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the Caribbean Sea (Colombia) |
| title_sort | short term changes in demersal fish assemblages exploited by an artisanal set gill net fishery in the caribbean sea colombia |
| topic | management fishing gear traditional ecological knowledge fishing effort PRIMER |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3041 |
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