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dc.contributor.author
Ocampo, Emiliano Hernan
dc.contributor.author
Spivak, Eduardo Daniel
dc.contributor.author
Baeza, Antonio J.
dc.contributor.author
Luppi, Tomas Atilio
dc.date.available
2018-11-16T18:53:03Z
dc.date.issued
2016-07-27
dc.identifier.citation
Ocampo, Emiliano Hernan; Spivak, Eduardo Daniel; Baeza, Antonio J.; Luppi, Tomas Atilio; Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour; Wiley Blackwell Publishing, Inc; Biological Journal of The Linnean Society; 120; 1; 27-7-2016; 54-74
dc.identifier.issn
0024-4066
dc.identifier.uri
http://hdl.handle.net/11336/64634
dc.description.abstract
Pea-crabs are symbiotic crustaceans that live in association with a diverse array of macro-invertebrate hosts. Some pea-crabs exhibit an unusual and incompletely known post-larval cycle characterized by the alternation of free-life and symbiotic forms. We analyzed post-larval morphology, the allometry of various body parts, and sexual dimorphism in Calyptraeotheres garthi, an endosymbiotic pea-crab infesting the brooding chamber of limpets in the southwestern Atlantic. In C. garthi, the smallest invasive crab moults into a male or female prehard stage, which is immediately followed by a hard stage. Then, hard-stage females, but not hard-stage males, pass through four post-hard stages before attaining a fifth terminal stage. The invasive and hard stages exhibit morphological traits (plumose natatory setae on the legs, compressed body shape, and moderate or strong carapace hardness) that likely permit them to swim efficiency while outside of hosts and entering and/or leaving host individuals. In contrast, pre- and post-hard crabs are well endowed for an endosymbiotic lifestyle featuring a soft and rounded carapace, and slender appendages. The allometry of selected traits suggests that males attain sexual maturity during the hard stage and likely roam among host individuals in search of mating opportunities. It remains unclear at which moment females become sexually active and whether hard females abandon host individuals in search of sexual partners.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Crustacean
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Dimorphism
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Mating System
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Pea-Crab
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Post-Larval Cycle
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Symbiosis
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-11-05T19:17:01Z
dc.identifier.eissn
1095-8312
dc.journal.volume
120
dc.journal.number
1
dc.journal.pagination
54-74
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Ocampo, Emiliano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Spivak, Eduardo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Baeza, Antonio J.. Universidad Católica del Norte; Chile. Clemson University; Estados Unidos
dc.description.fil
Fil: Luppi, Tomas Atilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.journal.title
Biological Journal of The Linnean Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1111/bij.12854
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/bij.12854
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/biolinnean/article/120/1/54/2864975
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