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Unknown facts of the biology of Polybius henslowii - Effect of gender on claw morphology and diet

2020-10Journal article Restricted access
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dc.contributor.authorCereja, Rui
dc.contributor.authorVinagre, Catarina
dc.contributor.authorSilva, Ana
dc.date.accessioned2021-06-24T11:35:12Z
dc.date.available2021-06-24T11:35:12Z
dc.date.issued2020-10
dc.description.abstractPolybius henslowii is known for both its unusual swimming behaviour and for forming large shoals during its pelagic phase. Although being a common species, many aspects of its biology remain unknown. In this work, P. henslowif s sexual dimorphism was examined in both dietary composition and morphologies of carapace and claw. Males were generally larger than females both on carapace and claw sizes. Claw morphology differed between males and females. Diet was similar between genders. Hence, we suggest that the sexual dimorphism in claw morphology results from gender-specific behaviours instead of diet. The most common dietary items were sand (51.2%), squid (34.1%) and crustaceans (26.8%). The same items were also the most important in volume, but with squids being more important than sand. The diet composition of P. henslowii was consistent with previous studies but also presenting sediment as an important item.
dc.description.sponsorshipEarthsystems doctoral school at IDL [PD/BD/135064/2017]
dc.description.sponsorshipPortuguese Fundacao para a Ciencia e Tecnologia (FCT): [UIDB/MAR/04292/2020]; [UIDB/04326/2020]; [UID/GEO/50019/2019]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.seares.2020.101953
dc.identifier.issn1385-1101
dc.identifier.urihttp://hdl.handle.net/10400.1/16368
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.subjectSwimming crab
dc.subjectStomach contents
dc.subjectClaw morphology
dc.subjectSexual dimorphism
dc.subject.otherMarine & Freshwater Biology; Oceanography
dc.titleUnknown facts of the biology of Polybius henslowii - Effect of gender on claw morphology and diet
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage101953
oaire.citation.titleJournal of Sea Research
oaire.citation.volume165
person.familyNameVinagre
person.givenNameCatarina
person.identifier.ciencia-id3F13-843A-791B
person.identifier.orcid0000-0003-2146-7948
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication86d00d4d-9343-4f98-ad81-7e0fa8906701
relation.isAuthorOfPublication.latestForDiscovery86d00d4d-9343-4f98-ad81-7e0fa8906701

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