Short-term effects of community-based marine reserves on green abalone, as revealed by population studies
Abstract Marine reserves (MRs) are implemented worldwide to protect, restore, and manage marine ecosystems and species. However, it is important to document the positive effects those marine reserves have on slow-growth, temperate invertebrates such as abalone. Abalone, Haliotis spp., are marine gas...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-50316-9 |
| _version_ | 1797355826262835200 |
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| author | Jeremie Bauer Jaime Segovia-Rendón Julio Lorda Alicia Abadía-Cardoso Luis Malpica-Cruz Patricia Alvarado-Graef Ricardo Searcy-Bernal Leonardo Vázquez-Vera Rodrigo Beas-Luna |
| author_facet | Jeremie Bauer Jaime Segovia-Rendón Julio Lorda Alicia Abadía-Cardoso Luis Malpica-Cruz Patricia Alvarado-Graef Ricardo Searcy-Bernal Leonardo Vázquez-Vera Rodrigo Beas-Luna |
| author_sort | Jeremie Bauer |
| collection | DOAJ |
| description | Abstract Marine reserves (MRs) are implemented worldwide to protect, restore, and manage marine ecosystems and species. However, it is important to document the positive effects those marine reserves have on slow-growth, temperate invertebrates such as abalone. Abalone, Haliotis spp., are marine gastropods of high economic value extracted worldwide for decades, which has led to fisheries-driven population decreases. In this work, we focused on a case study and assessed the short-term (1–2 years) effects of marine reserves established and managed by a local fishing cooperative at Guadalupe Island, Mexico. We evaluated the population status of green abalone, H. fulgens, by conducting (1) an assessment of the green abalone population around Guadalupe Island through subtidal monitoring and (2) an evaluation of the effect of two recently established marine reserves on population parameters such as the increase in density (individuals·m2), biomass, number of aggregated abalone, egg production, and proportion of individuals bigger than 150 mm (minimum harvest size) compared to fished areas. To assess the population around Guadalupe Island, we surveyed 11,160 m2 during 2020 and 2021. We recorded 2327 green abalones with a mean ± SE shell length of 135.978 ± 0.83 mm and a mean density of 0.21 ± 0.02 individuals·m2. All variables were statistically higher at the MRs except for shell length in 2021. In this work, we report for the first time the green abalone population status at Guadalupe Island and a positive short-term biological response to community-based marine reserves. This study suggests that a network of MRs combined with good management could help abalone populations in the short term in Guadalupe Island, potentially leading to more sustainable fishing practices and social-ecological resilience. |
| first_indexed | 2024-03-08T14:16:40Z |
| format | Article |
| id | doaj.art-f7c947eb29894d049213669a7ea7172c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T14:16:40Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-f7c947eb29894d049213669a7ea7172c2024-01-14T12:23:46ZengNature PortfolioScientific Reports2045-23222024-01-0114111310.1038/s41598-023-50316-9Short-term effects of community-based marine reserves on green abalone, as revealed by population studiesJeremie Bauer0Jaime Segovia-Rendón1Julio Lorda2Alicia Abadía-Cardoso3Luis Malpica-Cruz4Patricia Alvarado-Graef5Ricardo Searcy-Bernal6Leonardo Vázquez-Vera7Rodrigo Beas-Luna8Facultad de Ciencias Marinas, Universidad Autónoma de Baja CaliforniaProyectos y Servicios Marinos (PROSEMAR)Facultad de Ciencias, UABCFacultad de Ciencias Marinas, Universidad Autónoma de Baja CaliforniaInstituto de Investigaciones Oceanológicas, UABCFacultad de Ciencias Marinas, Universidad Autónoma de Baja CaliforniaInstituto de Investigaciones Oceanológicas, UABCUniversidad Autónoma de Baja California Sur (UABCS)Facultad de Ciencias Marinas, Universidad Autónoma de Baja CaliforniaAbstract Marine reserves (MRs) are implemented worldwide to protect, restore, and manage marine ecosystems and species. However, it is important to document the positive effects those marine reserves have on slow-growth, temperate invertebrates such as abalone. Abalone, Haliotis spp., are marine gastropods of high economic value extracted worldwide for decades, which has led to fisheries-driven population decreases. In this work, we focused on a case study and assessed the short-term (1–2 years) effects of marine reserves established and managed by a local fishing cooperative at Guadalupe Island, Mexico. We evaluated the population status of green abalone, H. fulgens, by conducting (1) an assessment of the green abalone population around Guadalupe Island through subtidal monitoring and (2) an evaluation of the effect of two recently established marine reserves on population parameters such as the increase in density (individuals·m2), biomass, number of aggregated abalone, egg production, and proportion of individuals bigger than 150 mm (minimum harvest size) compared to fished areas. To assess the population around Guadalupe Island, we surveyed 11,160 m2 during 2020 and 2021. We recorded 2327 green abalones with a mean ± SE shell length of 135.978 ± 0.83 mm and a mean density of 0.21 ± 0.02 individuals·m2. All variables were statistically higher at the MRs except for shell length in 2021. In this work, we report for the first time the green abalone population status at Guadalupe Island and a positive short-term biological response to community-based marine reserves. This study suggests that a network of MRs combined with good management could help abalone populations in the short term in Guadalupe Island, potentially leading to more sustainable fishing practices and social-ecological resilience.https://doi.org/10.1038/s41598-023-50316-9 |
| spellingShingle | Jeremie Bauer Jaime Segovia-Rendón Julio Lorda Alicia Abadía-Cardoso Luis Malpica-Cruz Patricia Alvarado-Graef Ricardo Searcy-Bernal Leonardo Vázquez-Vera Rodrigo Beas-Luna Short-term effects of community-based marine reserves on green abalone, as revealed by population studies Scientific Reports |
| title | Short-term effects of community-based marine reserves on green abalone, as revealed by population studies |
| title_full | Short-term effects of community-based marine reserves on green abalone, as revealed by population studies |
| title_fullStr | Short-term effects of community-based marine reserves on green abalone, as revealed by population studies |
| title_full_unstemmed | Short-term effects of community-based marine reserves on green abalone, as revealed by population studies |
| title_short | Short-term effects of community-based marine reserves on green abalone, as revealed by population studies |
| title_sort | short term effects of community based marine reserves on green abalone as revealed by population studies |
| url | https://doi.org/10.1038/s41598-023-50316-9 |
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