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An Outline Of The Biology of the Squid Illex Coindetii in the Sicilian Channel (Central Mediterranean)

Published online by Cambridge University Press:  11 May 2009

P. Jereb  and
S. Ragonese
P. Jereb
Affiliation:
Istituto di Tecnologia della Pesca e del Pescato, Consiglio Nazionale delle Ricerche, Via Luigi Vaccara 61, 91026 Mazara del Vallo, Italy
S. Ragonese
Affiliation:
Istituto di Tecnologia della Pesca e del Pescato, Consiglio Nazionale delle Ricerche, Via Luigi Vaccara 61, 91026 Mazara del Vallo, Italy
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Extract

INTRODUCTION

The genus Illex is likely to constitute a large portion of the annual world ommastrephid squid catches (Roper et al, 1984), even though specific official statistics are difficult to obtain. The broad-tail short-fin squid Illex coindetii is a widespread species ranging from the western to the eastern Atlantic (Roper et al., 1984) and east through the whole Mediterranean Sea (Mangold & Boletzky, 1987). Usually a by-catch of important fisheries, it is caught mainly by trawlers. Although its economic value is lower than that of other squid species (i.e. Loligo spp.), in the Sicilian Channel Illex coindetii may represent a valuable resource due to its abundance.

In Italian waters, the available statistics (Cingolani et al., 1986) report that 2680 tonnes of ommastrephid squid were landed in 1982 (0.5% of the total landed catch). The main component of these was landed in Sicily (2183 tonnes), a consistently large part of which was no doubt Illex coindetii (Ragonese & Jereb, 1992). The catches came mainly from southern Sicilian waters (Sicilian Channel) where one of the major Mediterranean landing places is in Mazara del Vallo. Large trawlers (up to 200 gross tonnage) usually carry out long fishing trips (15–20 d), and Illex coindetii is caught mainly by those targeting Parapenaeus longirostris and Merluccius merluccius (Jereb & Ragonese, 1991).

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 75 , Issue 2 , May 1995 , pp. 373 - 390
Copyright
Copyright © Marine Biological Association of the United Kingdom 1995

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