Affiliation:
1. Departamento Recursos del Mar, Centro de Investigación y de Estudios Avanzados (CINVESTAV) del Instituto Politécnico Nacional Unidad Mérida, Mérida, Yucatán, México
2. Laboratorio Nacional de Resiliencia Costera (LANRESC), Sisal, Yucatán, México
Abstract
Seagrass meadows provide multiple ecosystem services, including carbon sequestration. However, seagrass meadows are among the most threatened ecosystems worldwide. Determining the magnitude of the carbon stocks in seagrass meadows at the regional scale allows for the estimation of their global magnitude and identification of their importance in regional environmental mitigation strategies. The objective of the present study was to determine the structure of seagrass meadows in the Los Petenes Biosfera Reserve (LPBR) and evaluate their contributions to sinks of carbon in this system, located in Yucatan, which is considered the region with the largest seagrass extension in Mexico. Analyses of the seagrass meadows were executed following standardized protocols (spectral analysis, and isotope and carbon stock analyses). The LPBR stores an average of 2.2 ± 1.7 Mg C ha−1 in living biomass and 318 ± 215 Mg C ha−1 in sediment (top 1 m), and this carbon stock decreases with water depth. The seagrass community extends 149,613 ha, which represents the largest organic carbon stock (47 Tg C) documented in seagrass meadows in Mexico. Macroalgae and seagrass represent 76% of the organic carbon stored in sediment. If LPBR seagrass meadows are lost due to natural or anthropogenic impacts, 173 Tg CO2eqemissions could be released, which corresponds to the emissions generated by fossil fuel combustion of 27% of the current Mexican population. This information emphasizes the importance of seagrass meadows as a carbon sink in the region and their contribution to climate change mitigation, thus allowing for the implementation of necessary conservation strategies.
Subject
General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology,General Medicine,General Neuroscience
Reference90 articles.
1. Los ecosistemas de manglar en el estado De Campeche: Diagnóstico de la conservación e identificación de áreas potenciales para la restauración. Informe final;Agraz-Hernández;Fondos Mixtos del Gobierno del estado De Campeche y Ciencia y Tecnología (CONACyT-Fomix),2012
2. Evidence of direct particle trapping by a tropical seagrass meadow;Agawin;Estuaries,2002
3. Variations of phytoplankton community structure related to water quality trends in a tropical karstic coastal zone;Álvarez Góngora;Marine Pollution Bulletin,2006
4. Longshore sediment transport on the northern coast of the Yucatan Peninsula;Appendini;Journal of Coastal Research,2012
5. Lead from hunting activities and its potential environmental threat to wildlife in a protected wetland in Yucatan, Mexico;Arcega-Cabrera;Ecotoxicology and Environmental Safety,2014
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