http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49462
Size selection by diamond- and square-mesh codends in multi-species Mediterranean demersal trawl fisheries (Articolo in rivista)
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- Size selection by diamond- and square-mesh codends in multi-species Mediterranean demersal trawl fisheries (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.fishres.2008.02.003 (literal)
- Alternative label
Sala A. (a), Lucchetti A. (a), Piccinetti C. (b), Ferretti M. (c) (2008)
Size selection by diamond- and square-mesh codends in multi-species Mediterranean demersal trawl fisheries
in Fisheries research; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Sala A. (a), Lucchetti A. (a), Piccinetti C. (b), Ferretti M. (c) (literal)
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- doi:10.1016/j.fishres.2008.02.003 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (a) Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR), Sede di Ancona, (National Research Council (CNR), Institute of Marine Sciences (ISMAR), Section of Ancona), Largo Fiera della Pesca, 60125 Ancona, Italy
(b) Laboratorio di Biologia Marina e Pesca dellUniversita degli studi di Bologna in Fano, Viale Adriatico, 1/n 61032 Fano (PU), Italy
(c) Centro Italiano Ricerche e Studi per la Pesca (CIRSPE), Roma, Italy (literal)
- Titolo
- Size selection by diamond- and square-mesh codends in multi-species Mediterranean demersal trawl fisheries (literal)
- Abstract
- Mediterranean demersal trawl fisheries traditionally operate using small diamond-shape meshes in the codend, which tend to retain almost all animals. We investigated the effect of mesh configuration on the size selectivity of nine species (the scaldfish Arnoglossus laterna, the broad-tail shortfin squid Illex coindettii, the European hake Merluccius merluccius, the red mullet Mullus barbatus, the Norway lobster Nephrops norvegicus, the common pandora Pagellus erythrinus, the deepwater rose shrimp Parapenaeus longirostris, the Mediterranean horse mackerel Trachurus mediterraneus and the poor-cod Trisopterus minutus capelanus) commonly captured in the Mediterranean demersal trawls. Two codends having meshes with the same opening (ca. 38 mm) but different mesh configuration (DM38: diamond-mesh and SM38: square-mesh configuration) were fished daily and alternately on the same trawl. They demonstrated a substantial improvement in selectivity with square-mesh. Selectivity was measured using the covered codend technique, the cover being supported by circular hoops.
The results were analysed taking into account the between-haul variation in selectivity. Two other important external variables were identified: the trawling depth and the codend catch, which for some species influenced between-haul variation, but there was no evidence of a coherent effect on selectivity parameters. (literal)
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