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| Bachiller, Eneko; Albo-puigserver, Marta; Giménez, Joan; Pennino, Maria Grazia; Marí-mena, Neus; Esteban, Antonio; Lloret-lloret, Elena; Jadaud, Angelique; Carro, Belén; Bellido, José María; Coll, Marta. |
| This work combines state-of-the-art methods (DNA metabarcoding) with classic approaches (visual stomach content characterization and stable isotope analyses of nitrogen (δ15N) and carbon (δ13C)) to investigate the trophic ecology of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) at high taxonomic and spatial resolution in the Western Mediterranean Sea. Gut contents observed are in accordance with the dietary plasticity generally described for anchovy and sardine, suggesting a diet related to the opportunistic ingestion of available prey in a certain area and/or time. Genetic tools also showed modest inter-specific differences regarding ingested species. However, inter-specific and intra-specific differences in ingested prey frequencies... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00656/76807/77975.pdf |
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| Albo-puigserver, Marta; Navarro, Joan; Coll, Marta; Aguzzi, Jacopo; Cardona, Luis; Saez-liante, Raquel. |
| Understanding how marine predators interact is a scientific challenge. In marine ecosystems, segregation in feeding habits has been largely described as a common mechanism to allow the coexistence of several competing marine predators. However, little is known about the feeding ecology of most species of chondrichthyans, which play a pivotal role in the structure of marine food webs worldwide. In this study, we examined the trophic ecology of 3 relatively abundant chondrichthyans coexisting in the Mediterranean Sea: the blackmouth catshark Galeus melastomus, the velvet belly lanternshark Etmopterus spinax and the rabbit fish Chimaera monstrosa. To examine their trophic ecology and interspecific differences in food habits, we combined the analysis of... |
| Tipo: Text |
Palavras-chave: Feeding niche; Isotope analysis; Mediterranean Sea; Galeus melastomus; Etmopterus spinax; Chimaera monstrosa. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00266/37721/73392.pdf |
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