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  • Other Sources  (5)
  • 2000-2004  (5)
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  • 1
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    Fecundity of the common cuttlefish, Sepia officinalis L. (Cephalopoda, Sepiida): a new look at the old problem (2003)
    Institut de Ciències del Mar de Barcelona
    In:  Scientia Marina, 67 (3). pp. 279-284.
    Details
    Publication Date: 2021-09-06
    Description: The potential fecundity (PF) of advanced maturing and mature pre-spawning cuttlefish S. officinalis in the Aegean Sea varies from 3,700 to 8,000 (mean 5,871) oocytes, whereas the number of large yolk oocytes increases with mantle length from 130 to 839. Small oocytes predominate at all maturity stages. Spawning animals have a PF of some 1,000-3,000 eggs below that of pre-spawning females. This shows that intermittent spawning, which occurs in captivity, is a normal process in natural habitats. Empty follicular sheaths are resorbed very rapidly, and their number does not represent the number of eggs laid by the female prior to sampling. Regulative oocyte resorption was observed at early maturation in some cuttlefishes.
    Type: Article , PeerReviewed
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  • 2
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    Systematic position and reproduction of squid of the genus Alloteuthis (Cephalopoda: Loliginidae) in the eastern Mediterranean (2002)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 82 (6). pp. 983-985.
    Details
    Publication Date: 2021-07-08
    Description: Squid of the genus Alloteuthis from the Aegean Sea and eastern Mediterranean were identified as A. media. It is not possible to distinguish A. media from A. subulata by relative fin length. Both ‘species’ are probably intraspecific forms. Egg size varied from 1·5 to 2·3 mm. Oocyte maturation in the ovary occurs in batches. The potential fecundity is some 1000–4000 eggs, most of these being released during continuous spawning accompanied by female growth.
    Type: Article , PeerReviewed
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  • 3
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    Cephalopod fauna of the eastern Mediterranean (2002)
    Tübitak
    In:  Turkish Journal of Zoology, 26 (1). pp. 47-52.
    Details
    Publication Date: 2021-08-20
    Description: Studies on the cephalopods of Turkish coasts have been going on since 1988. As a result of these studies, a total of 43 species have been determined, comprising 11 species from the Sea of Marmara, 38 from the Aegean Sea and 24 from the Mediterranean Sea. With respect to other studies carried out excluding Turkish coasts, the eastern Mediterranean cephalopod fauna has increased to 51 species. Among the species determined, Ancistrocheirus lesueurii and Ancistroteuthis lichtensteini are new records for the eastern Mediterranean; Sepietta obscura, Ancistrocheirus lesueurii, Ancistroteuthis lichtensteini and Tremoctopus violaceus for the Aegean Sea; and Alloteuthis media, Rossia macrosoma and Eledone cirrhosa for the Mediterranean coast of Turkey.
    Type: Article , PeerReviewed
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  • 4
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    Stomach contents of two Mediterranean monk seals ( Monachus monachus ) from the Aegean Sea, Turkey (2001)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 81 (4). pp. 719-720.
    Details
    Publication Date: 2021-07-01
    Description: This study provides a description of the Mediterranean monk seal ( Monachus monachus ) diet from the Aegean Sea coast of Turkey. A total of 23 prey items belonging to five species were identified from the two stomachs examined. Cephalopods constitute the dominant prey group by weight (94·01%). Sarcotragus sp. (Porifera) and Posidonia oceanica (Magnoliophyta) are assumed to be incidental prey. Of the cephalopods identified, Eledone moschata and Bathypolypus sponsalis were encountered for the first time in a monk seal stomach.
    Type: Article , PeerReviewed
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  • 5
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    On reproductive strategies of the epipelagic octopods of the superfamily Argonautoidea (Cephalopoda: Octopoda) (2003)
    Springer
    In:  Marine Biology, 142 (2). pp. 321-326.
    Details
    Publication Date: 2021-07-08
    Description: Females of Tremoctopus violaceus, Argonauta argo and Ocythoe tuberculata in the Aegean Sea have larger eggs than specimens from the western Mediterranean and open ocean; the most probable reason is a shift in the reproductive strategies of Argonautoidea from the Aegean Sea toward the K-side, because of the high stability of this habitat in contrast to the unstable high seas. Potential fecundity of T. violaceus is 100,000–300,000; batch fecundity is 10,000–30,000, but at the beginning and at the end of spawning the batches are smaller. In A. argo potential fecundity is at least 85,000, with batch fecundity of some 2,000–4,000 eggs. The potential fecundity of small, mature O. tuberculata was 300,000 eggs. T. violaceus is an "intermittent terminal spawner", whereas both A. argo and O. tuberculata are "continuous spawners".
    Type: Article , PeerReviewed
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