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Title: Food sources of macrobenthos in an estuarine seagrass habitat (Zostera noltii) as revealed by dual stable isotope signatures
Authors: Vafeiadou, Anna-Maria
Materatski, Patrick
Adão, Helena
De Troch, Marleen
Moens, Tom
Editors: Sommer, Ulrich
Keywords: Macrobenthos
dual stable isotope signatures
Zostera noltii
Issue Date: 12-Apr-2013
Publisher: Springer-Verlag Berlin Heidelberg 2013
Citation: Mar Biol (2013) 160:2517–2523
Abstract: Stable carbon and nitrogen isotope analysis was used to examine the resources and position of macrobenthos in an estuarine seagrass food web in two sampling moments, during summer and winter. The contribution of each food source to the carbon requirements of consumers was estimated by a mixing model. The used carbon sources were largely seagrass associated, although seagrass tissues were utilized by only few species, and equally contributed to microphytobenthos and suspended particulate organic matter. Based on isotopic data, Lucinidae bivalves have an alternative trophic pathway via symbiosis with chemoautotrophic bacteria. Resource utilization inside and adjacent to seagrass beds did not differ significantly, implying that seagrass-associated inputs extend well beyond the borders of the vegetation patches.
Type: article
Appears in Collections:BIO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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