... PAOLO SARTOR1, MARIO SBRANA2, NICOLA UNGARO3, CHIARA A. MARANO3, CORRADO PICCINETTI4 and GABR... more ... PAOLO SARTOR1, MARIO SBRANA2, NICOLA UNGARO3, CHIARA A. MARANO3, CORRADO PICCINETTI4 and GABRIELLA PICCINETTI MANFRIN4 ... surveys (Bertrand et al., 2000, 2002), thereby improving knowledge on demersal species on a large geo-graphical scale. ...
... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), w... more ... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), where hake is exploited by the gillnetters based in the ports of Marina diCampo (Elba Island, 15 vessels), Porto Santo Stefano (5 vessels) (Sartor et al., 2001) and ...
The composition of the catch of the deep sea trawl fleet of Porto Santo Stefano (northern Tyrrhen... more The composition of the catch of the deep sea trawl fleet of Porto Santo Stefano (northern Tyrrhenian Sea, western Mediterranean) was analysed. In the period 199599 observations were carried out on board commercial vessels, collecting data for about 500 trawling hours. Nephrops norvegicus, Parapenaeus longirostris and large specimens of Merluccius merluccius were the targets on the fishing grounds from 300 to 450 m, while Aristaemorpha foliacea, Aristeus antennatus and N. norvegicus were targeted from 450 to 650 m depth. By-catch dominated the biomass caught and it was characterized by a high degree of species richness, as a consequence of the reduced selectivity of the bottom trawl gear. An important frac-tion of the by-catch was made up of non-target commercial species, these providing an important added value to the landings. There was almost no discarding of target species. Annual average discards were about 20% of the total catch. Discarding of commercial species was mostly due...
We investigate long-term changes in the Mediterranean marine resources driving the trawl fisherie... more We investigate long-term changes in the Mediterranean marine resources driving the trawl fisheries by analysing fishers' perceptions (Traditional Ecological Knowledge, TEK) throughout the Mediterranean Sea during the last 80 years. To this end, we conducted an extended set of interviews with experienced fishers that enabled us to classify species (or taxa) as 'decreasing' or 'increasing' both in terms of abundance, as well as average size in the catch. The aspect that most clearly emerged in all the investigated areas over time was the notable increase of fishing capacity indicators, such as engine power and fishing depth range. Atlantic mackerel, poor cod, scorpionfishes, striped seabream, and John Dory demonstrated a decreasing trend in the fishers' perceived abundance, while Mediterranean parrotfish, common pandora, cuttlefish, blue and red shrimp, and mullets gave indications of an increasing temporal trend. Although, as a rule, trawler captains did not r...
... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), w... more ... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), where hake is exploited by the gillnetters based in the ports of Marina diCampo (Elba Island, 15 vessels), Porto Santo Stefano (5 vessels) (Sartor et al., 2001) and ...
... the past decade (Lloret and Lleonart, 2002) and suggestive of growth-overfishing (Oliver ... ... more ... the past decade (Lloret and Lleonart, 2002) and suggestive of growth-overfishing (Oliver ... Ferrandis E. Modelling the relationship between fishing effort and fishing mortality in western ... The case of hake Merluccius merluccius and striped red mullet Mullus surmuletus in Balearic ...
... PAOLO SARTOR1, MARIO SBRANA2, NICOLA UNGARO3, CHIARA A. MARANO3, CORRADO PICCINETTI4 and GABR... more ... PAOLO SARTOR1, MARIO SBRANA2, NICOLA UNGARO3, CHIARA A. MARANO3, CORRADO PICCINETTI4 and GABRIELLA PICCINETTI MANFRIN4 ... surveys (Bertrand et al., 2000, 2002), thereby improving knowledge on demersal species on a large geo-graphical scale. ...
... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), w... more ... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), where hake is exploited by the gillnetters based in the ports of Marina diCampo (Elba Island, 15 vessels), Porto Santo Stefano (5 vessels) (Sartor et al., 2001) and ...
The composition of the catch of the deep sea trawl fleet of Porto Santo Stefano (northern Tyrrhen... more The composition of the catch of the deep sea trawl fleet of Porto Santo Stefano (northern Tyrrhenian Sea, western Mediterranean) was analysed. In the period 199599 observations were carried out on board commercial vessels, collecting data for about 500 trawling hours. Nephrops norvegicus, Parapenaeus longirostris and large specimens of Merluccius merluccius were the targets on the fishing grounds from 300 to 450 m, while Aristaemorpha foliacea, Aristeus antennatus and N. norvegicus were targeted from 450 to 650 m depth. By-catch dominated the biomass caught and it was characterized by a high degree of species richness, as a consequence of the reduced selectivity of the bottom trawl gear. An important frac-tion of the by-catch was made up of non-target commercial species, these providing an important added value to the landings. There was almost no discarding of target species. Annual average discards were about 20% of the total catch. Discarding of commercial species was mostly due...
We investigate long-term changes in the Mediterranean marine resources driving the trawl fisherie... more We investigate long-term changes in the Mediterranean marine resources driving the trawl fisheries by analysing fishers' perceptions (Traditional Ecological Knowledge, TEK) throughout the Mediterranean Sea during the last 80 years. To this end, we conducted an extended set of interviews with experienced fishers that enabled us to classify species (or taxa) as 'decreasing' or 'increasing' both in terms of abundance, as well as average size in the catch. The aspect that most clearly emerged in all the investigated areas over time was the notable increase of fishing capacity indicators, such as engine power and fishing depth range. Atlantic mackerel, poor cod, scorpionfishes, striped seabream, and John Dory demonstrated a decreasing trend in the fishers' perceived abundance, while Mediterranean parrotfish, common pandora, cuttlefish, blue and red shrimp, and mullets gave indications of an increasing temporal trend. Although, as a rule, trawler captains did not r...
... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), w... more ... MARIO SBRANA1, PAOLA BELCARI2, STEFANO DE RANIERI1, PAOLO SARTOR1, andCLAUDIO VIVA2 ... 1), where hake is exploited by the gillnetters based in the ports of Marina diCampo (Elba Island, 15 vessels), Porto Santo Stefano (5 vessels) (Sartor et al., 2001) and ...
... the past decade (Lloret and Lleonart, 2002) and suggestive of growth-overfishing (Oliver ... ... more ... the past decade (Lloret and Lleonart, 2002) and suggestive of growth-overfishing (Oliver ... Ferrandis E. Modelling the relationship between fishing effort and fishing mortality in western ... The case of hake Merluccius merluccius and striped red mullet Mullus surmuletus in Balearic ...
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