Preliminary data on the trophic interactions between Scyliorhinus canicula (Scyliorhinidae) and Raja clavata (Rajidae) in the Central-Western Mediterranean

MULAS, ANTONELLO;BELLODI, ANDREA;Pendugiu AA;CABIDDU, SERENELLA

2010-01-01

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Abstract

Preliminary data on the diet and trophic competition between Scyliorhinus canicula and Raja clavata, caught in the seas surrounding Sardinia (central-western Mediterranean),during trawl surveys carried out from 2005 to 2008 are given. The low values of Levin and Shannon-Weaver indexes showed that these two species are specialized predators. The ontogenetic analysis of the diet showed different predatory patterns.