Gill net and longlines fisheries in Cyclades waters (Aegean Sea): species composition and gear competition

Stergiou, K. I.; Moutopoulos, D. K.; Erzini, Karim

http://hdl.handle.net/10400.1/8799

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Authors

Stergiou, K. I.

Moutopoulos, D. K.

Erzini, Karim

Abstract(s)

Species composition and gear competition for the small-scale fisheries in the Cyclades waters (off Naxos Island, Aegean Sea. Hellas) was studied based on samples collected during 1997-1998 with gill nets of different mesh sizes and longlines with hooks of different sizes. Comparisons used univariate and multivariate techniques based on species compositions by number and weight and the commercial/total catch ratio in terms of weight and number. The results of the various techniques were in agreement and suggested that the different gear/size/season combinations fall into two groups (all gill nets and all longlines), which differed from each other in terms of species composition. species diversity and dominance. In contrast, the commercial/total catch ratio did not differ either within and between gears. The implications of the results for the management of the Mediterranean fisheries resources are also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.