Food web structure of deep-sea communities in the Balearic Basin: Evidence from D13C and D15N analysis
2010
Fanelli, Emanuela | Cartes, Joan Enric | Papiol, Vanesa | Maynou, Francesc | Rumolo, P. | Sprovieri, M.
39e Congrès de la CIESM : 39th CIESM Congress, 10-14 May 2010, Venice, Italie.-- 1 page, 1 figure
Mostrar más [+] Menos [-]Food web structure of deep-sea communities off the Catalan Sea (NW Mediterranean) was investigated using carbon and nitrogen stable isotope tracers on a total of 124 taxa. Samples were collected close to Barcelona, between 650 and 1600 m depths, from January 2007 to February 2008. The higher trophic levels were occupied by benthic fish ( Nezumia aequalis and Bathypterois mediterraneus, d N=11.30‰ and 11.36‰, respectively) and infaunal species (carnivores polychaetes such as Nephthys spp. and the deposit feeder Molpadia musculus). At the lower trophic levels we found Salpa maxima, and the pteropod Cymbulia peroni (TL=2). The overall range of d C values was indicative of more than one source of carbon sustaining deep-sea communities: from different kinds of sinking particles to sedimented and frequently recycled POM
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