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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Distribution and abundance of Octopus vulgaris Cuvier, 1797 (Cephalopoda: Octopoda) in the Mediterranean Sea Belcari, P.; Cuccu, D.; González, M.; Srairi, A.; Vidoris, P. (2002). Distribution and abundance of Octopus vulgaris Cuvier, 1797 (Cephalopoda: Octopoda) in the Mediterranean Sea. Sci. Mar. (Barc.) 66(S2): 157-166. https://dx.doi.org/10.3989/scimar.2002.66s2157 In: Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona. ISSN 0214-8358; e-ISSN 1886-8134, meer Ook verschenen in: Abelló, P.; Bertrand, J.A.; Gil de Sola, L.; Papaconstantinou, C.; Relini, G.; Souplet, A. (2002). Mediterranean marine demersal resources: the MEDITS international trawl survey (1994-1999). Scientia Marina (Barcelona), 66(S2). Institut de Ciències del Mar: Barcelona. 280 pp. https://dx.doi.org/10.3989/scimar.2002.66s2, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 358019 [ download pdf ]

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Trefwoorden

Abundance Distribution Fauna > Aquatic organisms > Aquatic animals > Shellfish > Marine organisms > Marine molluscs Hydrographic features > Marine areas > Oceans > Marine areas > Atlantic ocean > Mediterranean sea Mediterranean Sea Population characteristics > Population structure > Size distribution Octopus vulgaris Cuvier, 1797 [WoRMS] Mediterranean [Marine Regions] Marien/Kust

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Auteurs		Top
Belcari, P. Cuccu, D. González, M.	Srairi, A. Vidoris, P.

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Abstract

Information on distribution, abundance and size composition of the common octopus Octopus vulgaris was obtained from the MEDITS trawl surveys, carried out in a wide area of the Mediterranean basin from 1994 to 1999. The species showed a wide geographic distribution, since it was collected in all the major areas investigated, but differences were highlighted among the 40 geographic sectors sampled. O. vulgaris showed a narrow depth distribution, mostly restricted to within 100 m. Catches below 200 m were scarce and occasional at deeper sea bottoms. Further analysis between major areas in the depth strata 10-50 m and 50-100 m showed the Alborán Sea and Sardinian waters as the areas where the abundance of the species was the greatest. Size frequency distributions showed a wide size range, even if large individuals were represented in a very low proportion. The surveys highlighted the relevant presence of small individuals in almost all the analysed areas. Recruits with a modal length of 5-6 cm mantle length constituted the dominant mode in the histograms of a great extent of the Italian coasts and in Morocco and Corsica waters.

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