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Advisor(s)
Abstract(s)
Trammel net fisheries were studied in four areas: the Cantabrian Sea (Basque Country, Spain), the Algarve (Southern Portugal), the Gulf of CƔdiz (Spain) and the Cyclades Islands (Greece). Surveys were carried out in order to identify trammel net mƩtiers and to characterise the gear used. Trammel nets were among the most important gears used in the small-scale fisheries, with up to 9 different mƩtiers identified in each area. The most important mƩtiers in the Algarve and the Gulf of CƔdiz were those for cuttlefish (Sepia officinalis) and soles (Solea senegalensis, Microchirus azevia, Synaptura lusitanica). In the Cantabrian Sea, sole (Solea
vulgaris), shellfish (several species) and scorpion fish (Scorpaena spp.) mƩtiers dominated while a variety of species where targeted in the multi-species trammel net fishery in the Cyclades.
In each area, experimental trammel nets of six different types (combinations of 2 large mesh outer panel sizes and 3 small mesh outer panels) corresponding to the most common mƩtier, were constructed and fishing trials carried out on a seasonal basis (4 seasons in the Cantabrian Sea, Algarve and Cyclades and 2 in the Gulf of CƔdiz) using chartered commercial fishing vessels. Overall, 271, 360, 185 and 185 km of trammel nets were fished in the experimental fishing trials in the Cantabrian Sea, Algarve, Gulf of CƔdiz and Cyclades Islands
respectively.