20.500.12556/DiRROS-21734 New insights on the biological parameters of the exploited cuttlefish Sepia officinalis L. (Mollusca: Cephalopoda) in the northern Adriatic Sea in relation to the main fishing gears employed The cuttlefish (Sepia officinalis Linnaeus 1758) represents one of the most important coastal fishery resources of the Mediterranean Sea. For Italy, almost half (45%) of cuttlefish landings (2,328 t) originate from coastal regions of the northern Adriatic Sea: Veneto, Marche, Emilia Romagna and Friuli Venezia Giulia. In terms of economic value this species represents about 8% (~ Eur 16.5 million) of the production from this basin. From May 2004 to October 2005, cuttlefish were purchased from commercial landings of the Grado fishery fleet. At least 30 specimens were randomly taken each month from each fishing method employed for this species: bottom trawl (cod end mesh size 40 mm), rapido trawl, trammel net (mesh size of inner panel 30 mm) and cuttlefish specific trap. The main biological aspects, such as size, sex ratio, reproductive stage and diet in relation to both the season and type of fishing gear were analyzed. 1,495 specimens, ranging from 3.5 to 18.0 cm mantle length, were analyzed. In relation to the observed size and reproductive stage of individuals caught, trammel nets and cuttlefish traps both appeared to target sexually mature individuals, whilst trawling gear were not selective for either recruits or spawners. In total, 34 prey taxa were found in the stomachs of S. officinalis: crabs and bony fish species were the most important prey, although the latter were found mostly in the largest specimens. Finally the fullness index revealed that cuttlefish caught by trawling were more suitable for diet analysis than those caught by static gear. In this way the contribution of this paper was to give new insights on the biological parameters of this species in relation to the main fishing gears employed in the northern Adriatic Sea. morje glavonožci ribolov sipe Tržaški zaliv Jadransko morje nevretenčarji true false true Angleški jezik Slovenski jezik Znanstveno delo 2025-03-19 11:55:58 2025-03-19 11:55:58 2025-03-20 03:40:25 0000-00-00 00:00:00 2016 0 0 Članek objavljen on-line 15. febr. 2016; str. 152-162 št. 1 vol. 17 2016 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2015-02-15 591 1108-393X 10.12681/mms.1311 3791439 http://www.medit-mar-sc.net/index.php/marine/article/view/1311/717 1 bddfd9ae-04b0-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31210 RAZ_Bettoso_Nicola_2016.pdf RAZ_Bettoso_Nicola_2016.pdf 1 86E504625F469CC24DD15728D38A961D f353ce0d65a4547f322221bb9b7c7ff6f80c695331ad015407cabf6f0bde359f e6c00b4b-04b0-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31211 http://dx.doi.org/10.12681/mms.1311 0 f21d3ca1-04b0-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31212 Nacionalni inštitut za biologijo 0 0 0