Linked Life Data

21078015

Source:http://linkedlifedata.com/resource/pubmed/id/21078015

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2010-11-16
pubmed:abstractText
Examination 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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1095-8649
pubmed:author
pubmed:copyrightInfo
© 2010 The Authors. Journal of Fish Biology © 2010 The Fisheries Society of the British Isles.
pubmed:issnType
Electronic
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1505-25
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Reproductive biology of the starry smooth-hound shark Mustelus asterias: geographic variation and implications for sustainable exploitation.
pubmed:affiliation
Marine Biodiversity, Ecology & Evolution, School of Biology and Environmental Science, University College Dublin, Belfield, Dublin 4, Ireland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't