Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour

Autores
Ocampo, Emiliano Hernan; Spivak, Eduardo Daniel; Baeza, Antonio J.; Luppi, Tomas Atilio
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
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
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
Fil: Baeza, Antonio J.. Universidad Católica del Norte; Chile. Clemson University; Estados Unidos
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
Materia
CRUSTACEAN
DIMORPHISM
MATING SYSTEM
PEA-CRAB
POST-LARVAL CYCLE
SYMBIOSIS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/64634
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/64634
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviourOcampo, Emiliano HernanSpivak, Eduardo DanielBaeza, Antonio J.Luppi, Tomas AtilioCRUSTACEANDIMORPHISMMATING SYSTEMPEA-CRABPOST-LARVAL CYCLESYMBIOSIShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pea-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.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; ArgentinaFil: 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; ArgentinaFil: Baeza, Antonio J.. Universidad Católica del Norte; Chile. Clemson University; Estados UnidosFil: 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; ArgentinaWiley Blackwell Publishing, Inc2016-07-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/64634Ocampo, 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; 54-740024-40661095-8312CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/bij.12854info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/bij.12854info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/biolinnean/article/120/1/54/2864975info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:52:35Zoai:ri.conicet.gov.ar:11336/64634instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:52:35.351CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
title Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
spellingShingle Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
Ocampo, Emiliano Hernan
CRUSTACEAN
DIMORPHISM
MATING SYSTEM
PEA-CRAB
POST-LARVAL CYCLE
SYMBIOSIS
title_short Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
title_full Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
title_fullStr Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
title_full_unstemmed Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
title_sort Ontogenetic changes in the external anatomy of the parasitic castrator crab Calyptraeotheres garthi: Implications for the timing of host colonization and sexual behaviour
dc.creator.none.fl_str_mv Ocampo, Emiliano Hernan
Spivak, Eduardo Daniel
Baeza, Antonio J.
Luppi, Tomas Atilio
author Ocampo, Emiliano Hernan
author_facet Ocampo, Emiliano Hernan
Spivak, Eduardo Daniel
Baeza, Antonio J.
Luppi, Tomas Atilio
author_role author
author2 Spivak, Eduardo Daniel
Baeza, Antonio J.
Luppi, Tomas Atilio
author2_role author
author
author
dc.subject.none.fl_str_mv CRUSTACEAN
DIMORPHISM
MATING SYSTEM
PEA-CRAB
POST-LARVAL CYCLE
SYMBIOSIS
topic CRUSTACEAN
DIMORPHISM
MATING SYSTEM
PEA-CRAB
POST-LARVAL CYCLE
SYMBIOSIS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
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
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
Fil: Baeza, Antonio J.. Universidad Católica del Norte; Chile. Clemson University; Estados Unidos
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
description 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.
publishDate 2016
dc.date.none.fl_str_mv 2016-07-27
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/64634
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
0024-4066
1095-8312
CONICET Digital
CONICET
url http://hdl.handle.net/11336/64634
identifier_str_mv 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
0024-4066
1095-8312
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/bij.12854
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/bij.12854
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/biolinnean/article/120/1/54/2864975
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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