Population structure, relative growth and morphological sexual maturity of the snapping shrimp Alpheus brasileiro Anker, 2012 (Caridea: Alpheidae) from the south-eastern coast of Brazil

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dc.contributor.authorPescinelli, Régis Augusto [UNESP]
dc.contributor.authorAlmeida, Alexandre Oliveira
dc.contributor.authorCosta, Rogério Caetano [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.date.accessioned2018-12-11T17:20:43Z
dc.date.available2018-12-11T17:20:43Z
dc.date.issued2018-07-03
dc.description.abstractThe present study investigated the population structure of the snapping shrimp Alpheus brasileiro. We tested the hypotheses that the sex ratio of the population differs from the expected 1:1 and that the growth pattern differs between adults and juveniles and between sexes. Reproductive period, juvenile recruitment and morphological sexual maturity were estimated. Samples were collected in two periods. The first sampling occurred bimonthly from March 2013 to January 2014. The second sampling occurred monthly from April 2015 to March 2016. The population structure was determined based on the size-frequency distribution of different demographic categories. To analyse the relative growth, we measured the second pleuron length, major cheliped propodus length, major cheliped propodus width, major cheliped propodus height, appendix interna length, appendix masculina length. The results showed that the sex ratio did not differ from 1:1 (male:female). Reproduction and juvenile recruitment were continuous throughout the study period. The analysis of relative growth confirmed the hypothesis that males and females, and juveniles and adults, have different growth patterns, indicating distinct strategies of energy allocation. The estimated carapace length at the onset of morphological sexual maturity was 4.9 mm in males and 4.7 mm in females. The results obtained in this study are probably related to the monogamous social behaviour of A. brasileiro. Monogamy can influence demographic parameters such as sex ratio and the size at which males and females reach morphological sexual maturity.en
dc.description.affiliationLaboratory of Biology of Marine and Freshwater Shrimp (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)
dc.description.affiliationLaboratory of Crustacean Biology (LBC) Department of Zoology Bioscience Center Federal University of Pernambuco
dc.description.affiliationUnespLaboratory of Biology of Marine and Freshwater Shrimp (LABCAM) Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2010/50188-8
dc.description.sponsorshipIdFAPESP: 2013/12136-4
dc.format.extent610-620
dc.identifierhttp://dx.doi.org/10.1080/17451000.2018.1472383
dc.identifier.citationMarine Biology Research, v. 14, n. 6, p. 610-620, 2018.
dc.identifier.doi10.1080/17451000.2018.1472383
dc.identifier.file2-s2.0-85048201572.pdf
dc.identifier.issn1745-1019
dc.identifier.issn1745-1000
dc.identifier.scopus2-s2.0-85048201572
dc.identifier.urihttp://hdl.handle.net/11449/176417
dc.language.isoeng
dc.relation.ispartofMarine Biology Research
dc.relation.ispartofsjr0,467
dc.relation.ispartofsjr0,467
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectallometry
dc.subjectAudrey J. Geffen
dc.subjectenergy allocation
dc.subjectPopulation structure
dc.subjectsex ratio
dc.subjectsexual maturity
dc.titlePopulation structure, relative growth and morphological sexual maturity of the snapping shrimp Alpheus brasileiro Anker, 2012 (Caridea: Alpheidae) from the south-eastern coast of Brazilen
dc.typeArtigo
unesp.author.orcid0000-0003-4109-3859[1]
unesp.author.orcid0000-0003-0470-8658[2]
unesp.author.orcid0000-0002-1342-7340[3]

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Artigos - Ciências Biológicas - São Vicente