Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia
Fisheries of the Mekong Basin are crucial to regional food security. They rely on seasonal monsoon rains that inundate rice fields and reconnect water bodies. Species assemblages vary over time and space, but infrastructure developments and climate change are negatively impacting the timing and magn...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/136048 |
| _version_ | 1855531626313809920 |
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| author | Tilley, Alexander Freed, Sarah Cagua, E. Fernando Longobardi, Lorenzo Sean, Vichet Mith, Samonn Kim, Miratori Kura, Yumiko |
| author_browse | Cagua, E. Fernando Freed, Sarah Kim, Miratori Kura, Yumiko Longobardi, Lorenzo Mith, Samonn Sean, Vichet Tilley, Alexander |
| author_facet | Tilley, Alexander Freed, Sarah Cagua, E. Fernando Longobardi, Lorenzo Sean, Vichet Mith, Samonn Kim, Miratori Kura, Yumiko |
| author_sort | Tilley, Alexander |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Fisheries of the Mekong Basin are crucial to regional food security. They rely on seasonal monsoon rains that inundate rice fields and reconnect water bodies. Species assemblages vary over time and space, but infrastructure developments and climate change are negatively impacting the timing and magnitude of the flood pulse as well as fish migration routes and populations. In lowland rice field landscapes of Cambodia, community fish refuges (CFRs) are used to maintain fish abundance and biodiversity, with varying success. There is little knowledge of the drivers of this variation to guide management interventions. We used beta diversity to explore the effectiveness of 40 CFRs in maintaining species abundance and diversity during the dry seasons from 2012 to 2015. Results show CFR connectivity to the floodplain is important and suggest the type of inlet/outlet influences fish retention. CFRs connected to a large area of rice fields during the wet season had lower losses in species abundance through the dry season. However, large CFRs, or those part of a larger body of water, had higher losses in species abundance. Key design features of CFRs must be coupled with strong management capacity to guide the conservation and fisheries strategy in the Mekong Basin. |
| format | Journal Article |
| id | CGSpace136048 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1360482026-01-24T02:10:44Z Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia Tilley, Alexander Freed, Sarah Cagua, E. Fernando Longobardi, Lorenzo Sean, Vichet Mith, Samonn Kim, Miratori Kura, Yumiko aquatic foods fish small scale fisheries rice field fisheries mekong beta diversity flood pulse dissimilarity Fisheries of the Mekong Basin are crucial to regional food security. They rely on seasonal monsoon rains that inundate rice fields and reconnect water bodies. Species assemblages vary over time and space, but infrastructure developments and climate change are negatively impacting the timing and magnitude of the flood pulse as well as fish migration routes and populations. In lowland rice field landscapes of Cambodia, community fish refuges (CFRs) are used to maintain fish abundance and biodiversity, with varying success. There is little knowledge of the drivers of this variation to guide management interventions. We used beta diversity to explore the effectiveness of 40 CFRs in maintaining species abundance and diversity during the dry seasons from 2012 to 2015. Results show CFR connectivity to the floodplain is important and suggest the type of inlet/outlet influences fish retention. CFRs connected to a large area of rice fields during the wet season had lower losses in species abundance through the dry season. However, large CFRs, or those part of a larger body of water, had higher losses in species abundance. Key design features of CFRs must be coupled with strong management capacity to guide the conservation and fisheries strategy in the Mekong Basin. 2023-12-30T21:44:40Z 2023-12-30T21:44:40Z Journal Article https://hdl.handle.net/10568/136048 en Open Access application/pdf Springer Alexander Tilley, Sarah Freed, E. Fernando Cagua, Lorenzo Longobardi, Vichet Sean, Samonn Mith, Miratori Kim, Yumiko Kura. (3/11/2023). Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia. Hydrobiologia. |
| spellingShingle | aquatic foods fish small scale fisheries rice field fisheries mekong beta diversity flood pulse dissimilarity Tilley, Alexander Freed, Sarah Cagua, E. Fernando Longobardi, Lorenzo Sean, Vichet Mith, Samonn Kim, Miratori Kura, Yumiko Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title | Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title_full | Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title_fullStr | Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title_full_unstemmed | Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title_short | Retention of fish biodiversity in a mixed-use agroecosystem in Cambodia |
| title_sort | retention of fish biodiversity in a mixed use agroecosystem in cambodia |
| topic | aquatic foods fish small scale fisheries rice field fisheries mekong beta diversity flood pulse dissimilarity |
| url | https://hdl.handle.net/10568/136048 |
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