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Comparative reproductive biology of two southwestern Atlantic populations of the hermit crab Pagurus exilis (Crustacea: Anomura: Paguridae)
2010; Wiley; Volume: 31; Issue: 4 Linguagem: Inglês
10.1111/j.1439-0485.2010.00387.x
ISSN1439-0485
AutoresMariana Terossi, Lucas Simon Torati, Ivana Miranda, Marcelo A. Scelzo, Fernando Luís Medina Mantelatto,
Tópico(s)Marine Biology and Ecology Research
ResumoMarine EcologyVolume 31, Issue 4 p. 584-591 Comparative reproductive biology of two southwestern Atlantic populations of the hermit crab Pagurus exilis (Crustacea: Anomura: Paguridae) Mariana Terossi, Mariana Terossi Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorLucas S. Torati, Lucas S. Torati Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorIvana Miranda, Ivana Miranda Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorMarcelo A. Scelzo, Marcelo A. Scelzo Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata/CONICET, Mar del Plata, ArgentinaSearch for more papers by this authorFernando L. Mantelatto, Fernando L. Mantelatto Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this author Mariana Terossi, Mariana Terossi Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorLucas S. Torati, Lucas S. Torati Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorIvana Miranda, Ivana Miranda Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this authorMarcelo A. Scelzo, Marcelo A. Scelzo Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata/CONICET, Mar del Plata, ArgentinaSearch for more papers by this authorFernando L. Mantelatto, Fernando L. Mantelatto Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP),University of São Paulo (USP), Ribeirão Preto, SP, Brazil Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, BrazilSearch for more papers by this author First published: 26 October 2010 https://doi.org/10.1111/j.1439-0485.2010.00387.xCitations: 21 Fernando L. Mantelatto, Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), 14040-901 Ribeirão Preto, SP, Brazil.E-mail: flmantel@usp.br Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Pagurus exilis (Benedict, 1892) is an endemic South Atlantic hermit crab with a distribution ranging from Rio de Janeiro State, Brazil, to Buenos Aires Province, Argentina. The present study analyzed the reproduction of two populations at the extremes of this geographical distribution, and compared their reproductive period, fecundity, and changes in egg size and egg volume during the incubation period in order to assess the variability over this latitudinal range. Hermit crabs were collected monthly over a 2-year period. In total, 108 females were analyzed for Brazil (44 non-ovigerous and 64 ovigerous), and 141 for Argentina (87 non-ovigerous and 54 ovigerous). Reproduction in Brazil occurs year-round, with peaks in the fall and winter seasons; in Argentina reproduction occurs only in spring and summer. The Brazilian ovigerous females were significantly larger than the Argentina ones (Brazil: SL = 5.33 ± 1.45 mm; Argentina: SL = 4.15 ± 0.52 mm; P < 0.001). The fecundity was 1447 ± 831 eggs (317 to 2885) in Brazil and 987 ± 711 eggs (114 to 2665) in Argentina, with a trend towards higher fecundity in Brazil. Eggs in the Argentina population were larger than those in Brazil for all the three stages investigated, and no changes in egg volume were found during egg development for both populations. The reproductive traits of the two populations showed some important differences, which may reflect adaptations to local environmental conditions, demonstrating a high plasticity of reproductive features of the species in Brazilian and Argentine waters. The strategy adopted by the Argentina population involves a lower production of larger eggs compared to the population in Brazil; this lower production is associated with reproduction in cold-water regions. Citing Literature Volume31, Issue4December 2010Pages 584-591 RelatedInformation
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