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Bathypolypus sponsalis (Cephalopoda: Octopoda) from the central western Mediterranean Sea

Published online by Cambridge University Press:  03 August 2009

D. Cuccu ,
M. Mereu ,
M.C. Follesa ,
A.M. Deiana  and
A. Cau
D. Cuccu*
Affiliation:
Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy
M. Mereu
Affiliation:
Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy
M.C. Follesa
Affiliation:
Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy
A.M. Deiana
Affiliation:
Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy
A. Cau
Affiliation:
Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy
*
Correspondence should be addressed to: D. Cuccu, Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Viale Poetto 1, Sardinia, Italy email: cuccu@unica.it
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Abstract

A sample of 360 Bathypolypus sponsalis from the central western Mediterranean Sea (the Sardinian Channel and the Tyrrhenian Sea) was analysed in order to describe size, depth distribution and reproductive data. The first record of the species in the Tyrrhenian Sea and of a spent female are reported in this paper. The size-structure of the sample was in between values of documented data from the western and eastern Mediterranean basins and the minimum mature sizes in both sexes and spermatophore length were similar to previous data from the eastern Mediterranean Sea. Low values of gonadosomatic index and fecundity, the asynchronous ovulation, in addition to an extended reproductive period, have been associated with an intermittent spawning strategy.

Keywords

Bathypolypus sponsalisreproductive biologygeographical distributionMediterranean Sea
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 91 , Special Issue 2: Biodiversity and Taxonomy , March 2011 , pp. 549 - 553
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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