Analisi dei trend di abbondanza di alcune specie di crostacei di importanza commerciale nel Tirreno meridionale.

In this paper the temporal abundance trends of some commercial decapod crustaceans, such as Aristeus antennatus, Aristaeomorpha foliacea, Nephrops norvegicus and Parapenaeus longirostris during ten years of research are shown. The data were recorded during the GRUND national project from 1994 to 2004. The results showed a negative trend for Aristeus antennatus and a positive, but not significant trend for Parapenaeus longirostris in the study area.