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Título: | Study of the trophic web of San Simón Bay (Ría de Vigo) by using stable isotopes |
Autor: | Filgueira, Ramón CSIC ORCID; Castro, Bernardino G. CSIC | Palabras clave: | Stable isotope Food web Diet analysis Seagrass Ria de Vigo |
Fecha de publicación: | 30-oct-2010 | Editor: | Elsevier | Citación: | Continental Shelf Research 31(5): 476-487 (2011) | Resumen: | Based on the stable isotope composition in 15N and 13C of different potential sources of organic matter and consumers of an intertidal Zostera marina meadow located in San Simón Bay (Ría de Vigo, NW of Spain), a simplified food web of this community was reconstructed. For this purpose, some alternatives in different steps of the most used methodology of stable isotope dietary analysis were developed that cope with some of the limitations associated to the interpretation of isotopic signals for food web analysis, those of uncertainty on the fractionation value, mathematical model to use for the diet resolution and shortage of the isotope number for discriminating many food sources. The application of this protocol to the studied community reported similar results to those from other studies based on similar trophic webs, emphasizing the importance of local primary producers, especially microphytobenthos, which could be available for several primary consumers through resuspension forced by tidal hydrodynamic. The good agreement with previous results suggests that the proposed protocol is a feasible alternative to elucidate the most plausible trophic relationships in complex trophic webs using stable isotopes analysis. | Versión del editor: | http://dx.doi.org/10.1016/j.csr.2010.10.010 | URI: | http://hdl.handle.net/10261/44477 | DOI: | 10.1016/j.csr.2010.10.010 | E-ISSN: | 0278-4343 |
Aparece en las colecciones: | (IIM) Artículos |
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Filgueira.pdf | 350,14 kB | Adobe PDF | Visualizar/Abrir |
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