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Stable nitrogen isotopes in the turtle grass Thalassia testudinum from the Mexican Caribbean: implications of anthropogenic development

Sánchez Martínez, Alberto de Jesús | Ortiz Hernández, Ma. Concepción [autor/a] | Talavera Sáenz, Ana Luisa [autor/a] | Aguíñiga García, Sergio [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Thalassia testudinum | Isótopos del nitrógeno | Pastos marinos | Arrecifes de coralDescriptor(es) geográficos: Laguna Nichupté (Quintana Roo, México) | Puerto Morelos, Benito Juárez (Quintana Roo, México) | Bahía Akumal, Tulum (Quintana Roo, México) | Tulum, Solidaridad (Quintana Roo, México) | Mahahual, Othón P. Blanco (Quintana Roo, México) Nota de acceso: Acceso en línea sin restricciones En: Estuarine, Coastal and Shelf Science Available. volumen 135 (December 2013), páginas 86-93. --ISSN: 0272-7714Número de sistema: 35804Resumen:
Inglés

Nutrient inputs associated with population growth threaten the integrity of coastal ecosystems. To assess the rapid increase in tourism, we compared the δ15N from Thalassia testudinum collected at sites with different levels of tourism development to detect the N inputs of wastewater discharge (WD) along the coast of Quintana Roo. The contributions of nitrogen enriched in 15N are directly related to the increase of WD inputs in areas of tourism development (Nichupte Lagoon in Cancun) and decreased toward Bahia Akumal and Tulum. The δ15N from T. testudinum was significantly lower at Mahahual and Puerto Morelos. In areas of the lowest development and with tourist activity restricted, such as the Yum Balam Reserve and Sian Ka'an Biosphere Reserve, the δ15N values were relatively enriched compared to Mahahual and Puerto Morelos. Therefore, Puerto Morelos and Mahahual may be used for baseline isotopic monitoring where tourist activities are growing and can lead to environmental pressure on the reef lagoon ecosystem. The anthropogenic N input has the potential to impact, both environmentally and economically, the seagrass meadows and the coral reefs along the coast of Quintana Roo and the Caribbean.

Recurso en línea: http://www.sciencedirect.com/science/article/pii/S0272771413000784/pdfft?md5=fdd799bbad89da520b99dfbcb319b799&pid=1-s2.0-S0272771413000784-main.pdf
Lista(s) en las que aparece este ítem: María Concepción Ortiz Hernández
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Acceso en línea sin restricciones

Nutrient inputs associated with population growth threaten the integrity of coastal ecosystems. To assess the rapid increase in tourism, we compared the δ15N from Thalassia testudinum collected at sites with different levels of tourism development to detect the N inputs of wastewater discharge (WD) along the coast of Quintana Roo. The contributions of nitrogen enriched in 15N are directly related to the increase of WD inputs in areas of tourism development (Nichupte Lagoon in Cancun) and decreased toward Bahia Akumal and Tulum. The δ15N from T. testudinum was significantly lower at Mahahual and Puerto Morelos. In areas of the lowest development and with tourist activity restricted, such as the Yum Balam Reserve and Sian Ka'an Biosphere Reserve, the δ15N values were relatively enriched compared to Mahahual and Puerto Morelos. Therefore, Puerto Morelos and Mahahual may be used for baseline isotopic monitoring where tourist activities are growing and can lead to environmental pressure on the reef lagoon ecosystem. The anthropogenic N input has the potential to impact, both environmentally and economically, the seagrass meadows and the coral reefs along the coast of Quintana Roo and the Caribbean. eng

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