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Reproductive biology of the blackmouth catshark, Galeus melastomus (Chondrichthyes: Scyliorhinidae) off the south coast of Portugal

dc.contributor.authorLima Costa, Maria Emília
dc.contributor.authorErzini, Karim
dc.contributor.authorBorges, Teresa C.
dc.date.accessioned2016-12-14T16:22:28Z
dc.date.available2016-12-14T16:22:28Z
dc.date.issued2005
dc.description.abstractThe reproductive biology of 1045 female (9.5-67 cm (total length(TL)) and 1007 male (9.4-64.3 cm TL) blackmouth catsharks, Galeus melastomus, was investigated. The sharks were caught off southern Portugal by bottom crustacean trawlers at depths from 209 to 754 m. The sex ratio was 1:1, and this species is sexually dimorphic with males approaching maturity at smaller size than females. Sexual segregation appears to be given for the stork within the study area. Sexual maturity was reached at a total length above 49 cm in males and above 56 cm in females. Mating and egg-deposition take place all year round, with two reproductive peaks of activity, in winter and summer. Egg capsules are, on average, 54 mm long and 21 mm wide, with a maximum of 63 x 25 mm encountered. Morphometric measurements of claspers, testes, ovaries, and oviducal glands were suitable for determining sexual maturity of blackmouth catshark.
dc.identifier.doi10.1017/S0025315405012270
dc.identifier.issn0025-3154
dc.identifier.otherAUT: KER00543; TBO00930;
dc.identifier.urihttp://hdl.handle.net/10400.1/8821
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCambridge University Press
dc.relation.isbasedonWOS:000233037000020
dc.titleReproductive biology of the blackmouth catshark, Galeus melastomus (Chondrichthyes: Scyliorhinidae) off the south coast of Portugal
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1183
oaire.citation.issue5
oaire.citation.startPage1173
oaire.citation.titleJournal Of The Marine Biological Association Of The United Kingdom
oaire.citation.volume85
person.familyNameLima Costa
person.familyNameErzini
person.familyNameBorges
person.givenNameMaria Emília
person.givenNameKarim
person.givenNameTeresa Cerveira
person.identifier.ciencia-idD917-7133-341A
person.identifier.ciencia-id5A1E-E8AD-3E24
person.identifier.orcid0000-0002-4433-5756
person.identifier.orcid0000-0002-1411-0126
person.identifier.orcid0000-0002-6414-0083
person.identifier.ridM-5216-2013
person.identifier.ridM-3388-2013
person.identifier.scopus-author-id7003633118
person.identifier.scopus-author-id7004015948
person.identifier.scopus-author-id6604001208
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication6eb9b8a6-dd51-4ace-809b-7d7de9cdfe36
relation.isAuthorOfPublicatione20f0e2d-3085-4c37-9e98-260dc9faddea
relation.isAuthorOfPublication7975c9b8-d25a-4bec-91f4-d1193a8e8082
relation.isAuthorOfPublication.latestForDiscoverye20f0e2d-3085-4c37-9e98-260dc9faddea

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