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dc.contributor.authorFarrell, E. D.
dc.contributor.authorMariani, S.
dc.contributor.authorClarke, M. W.
dc.date.accessioned2018-09-20T16:07:43Z
dc.date.available2018-09-20T16:07:43Z
dc.date.issued2010-10-04
dc.identifier.citationFarrell, E. D. Mariani, S.; Clarke, M. W. (2010). Reproductive biology of the starry smooth-hound shark mustelus asterias: geographic variation and implications for sustainable exploitation. Journal of Fish Biology 77 (7), 1505-1525
dc.identifier.issn0022-1112
dc.identifier.urihttp://hdl.handle.net/10379/11419
dc.description.abstractExamination of the reproductive biology of Mustelus asterias in the north-east Atlantic Ocean highlighted apparent geographical variation in maturity, fecundity and ovarian cycle between Atlantic and Mediterranean populations. The stretch total length (L-ST) and age at 50% maturity for Atlantic males and females were estimated at 78 cm L-ST and 4-5 years and 87 cm L-ST and 6 years, respectively. Size at maturity of females was considerably smaller than in Mediterranean specimens (96 cm L-ST). Ovarian fecundity ranged from eight to 27 oocytes and uterine fecundity from six to 18 embryos. The gestation period was c. 12 months, followed by a resting period of c. 12 months, resulting in a biennial cycle. Females stored sperm in the oviducal gland and, unlike Mediterranean specimens, no uterine compartments were observed in Atlantic specimens. This study reveals the existence of strong, possibly adaptive, divergence in life-history traits in an elasmobranch, whose northern populations may be more susceptible to overexploitation than previously believed.
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Fish Biology
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectelasmobranch
dc.subjectgestation
dc.subjectsperm storage
dc.subjectuterine compartments
dc.subjectcentral mediterranean sea
dc.subjectgummy shark
dc.subjectlife-history
dc.subjectelasmobranch fishes
dc.subjectstarspotted dogfish
dc.subjectdemersal resources
dc.subjectoviducal gland
dc.subjectatlantic-ocean
dc.subjectsperm storage
dc.subjecttriakidae
dc.titleReproductive biology of the starry smooth-hound shark mustelus asterias: geographic variation and implications for sustainable exploitation
dc.typeArticle
dc.identifier.doi10.1111/j.1095-8649.2010.02771.x
dc.local.publishedsourcehttp://oar.marine.ie/bitstream/10793/87/1/Reproductive%20biology%20of%20the%20starry%20smooth-hound%20shark%20Mustelus%20asterias%20geographic%20variation%20and%20implications%20for%20sustainable%20exploitation%20Post%20Print.pdf
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Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland