Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura)
- Autores
- McLay, Colin L.; Sal Moyano, María Paz
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The derived condition in Brachyura is exhibited when mating is not linked to moulting (i.e. hard-shell mating). Grapsoid and ocypodid crabs have this type of mating wherein females become receptive and have mobile vulvae covered by operculae without moulting. The mobility of the operculae has been attributed to a decalcification process although it has never been demonstrated experimentally. We described the morphology of the vulvae (operculum and hinge) and measure calcium levels employing X-ray Energy Dispersive Spectroscopy of the intermoult immature and mature female of several different species of grapsoid crabs: Austrohelice crassa, Cyclograpsus lavauxi, Hemigrapsus crenulatus, Hemigrapsus sexdentatus (Varunidae), Guinusia chabrus (Plagusiidae), Leptograpsus variegatus (Grapsidae), and the ocypodid Hemiplax hirtipes (Macrophthalmidae). We measured calcium levels during a reproductive cycle in the case of H. sexdentatus. In all the studied species the opercula and hinge had lower calcium levels compared to the adjacent exoskeleton, and the hinge showed the lowest values of calcium (9.7 and 40.8 weight%, respectively). Immature and adult crabs showed that the distribution of calcium remains the same after the pubertal moult as it was before. Furthermore, in H. sexdentatus, hinge calcium levels do not change during the female reproductive cycle when females become receptive. It is suggested that an alternative mechanism, not related to decalcification, could be involved in promoting mobility of the hinge in receptive females of these species. We need to modify our ideas of the processes involved in female receptivity in all these crabs with an operculate vulva and hence mate attraction. Answers to these questions are the key to understanding how the linkage of mating to moulting was broken.
Fil: McLay, Colin L.. University Of Canterbury; Nueva Zelanda
Fil: Sal Moyano, María Paz. 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 Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina - Materia
-
Austrohelice
Copulation
Cyclograpsus
Decalcification
Guinusia
Hard-Shell Mating
Hemigrapsus
Hemiplax
Hinge Linemobility
Leptograpsus
Macrophthalmidae
Mate Attraction
Moulting
Varunidae - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63526
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Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura)McLay, Colin L.Sal Moyano, María PazAustroheliceCopulationCyclograpsusDecalcificationGuinusiaHard-Shell MatingHemigrapsusHemiplaxHinge LinemobilityLeptograpsusMacrophthalmidaeMate AttractionMoultingVarunidaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The derived condition in Brachyura is exhibited when mating is not linked to moulting (i.e. hard-shell mating). Grapsoid and ocypodid crabs have this type of mating wherein females become receptive and have mobile vulvae covered by operculae without moulting. The mobility of the operculae has been attributed to a decalcification process although it has never been demonstrated experimentally. We described the morphology of the vulvae (operculum and hinge) and measure calcium levels employing X-ray Energy Dispersive Spectroscopy of the intermoult immature and mature female of several different species of grapsoid crabs: Austrohelice crassa, Cyclograpsus lavauxi, Hemigrapsus crenulatus, Hemigrapsus sexdentatus (Varunidae), Guinusia chabrus (Plagusiidae), Leptograpsus variegatus (Grapsidae), and the ocypodid Hemiplax hirtipes (Macrophthalmidae). We measured calcium levels during a reproductive cycle in the case of H. sexdentatus. In all the studied species the opercula and hinge had lower calcium levels compared to the adjacent exoskeleton, and the hinge showed the lowest values of calcium (9.7 and 40.8 weight%, respectively). Immature and adult crabs showed that the distribution of calcium remains the same after the pubertal moult as it was before. Furthermore, in H. sexdentatus, hinge calcium levels do not change during the female reproductive cycle when females become receptive. It is suggested that an alternative mechanism, not related to decalcification, could be involved in promoting mobility of the hinge in receptive females of these species. We need to modify our ideas of the processes involved in female receptivity in all these crabs with an operculate vulva and hence mate attraction. Answers to these questions are the key to understanding how the linkage of mating to moulting was broken.Fil: McLay, Colin L.. University Of Canterbury; Nueva ZelandaFil: Sal Moyano, María Paz. 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 Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaCrustacean Society2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63526McLay, Colin L.; Sal Moyano, María Paz; Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura); Crustacean Society; Journal of Crustacean Biology; 36; 2; 3-2016; 220-2280278-03721937-240XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1163/1937240X-00002405info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jcb/article/36/2/220/2547967info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:50Zoai:ri.conicet.gov.ar:11336/63526instacron: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:34982025-09-29 10:06:50.424CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
title |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
spellingShingle |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) McLay, Colin L. Austrohelice Copulation Cyclograpsus Decalcification Guinusia Hard-Shell Mating Hemigrapsus Hemiplax Hinge Linemobility Leptograpsus Macrophthalmidae Mate Attraction Moulting Varunidae |
title_short |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
title_full |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
title_fullStr |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
title_full_unstemmed |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
title_sort |
Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura) |
dc.creator.none.fl_str_mv |
McLay, Colin L. Sal Moyano, María Paz |
author |
McLay, Colin L. |
author_facet |
McLay, Colin L. Sal Moyano, María Paz |
author_role |
author |
author2 |
Sal Moyano, María Paz |
author2_role |
author |
dc.subject.none.fl_str_mv |
Austrohelice Copulation Cyclograpsus Decalcification Guinusia Hard-Shell Mating Hemigrapsus Hemiplax Hinge Linemobility Leptograpsus Macrophthalmidae Mate Attraction Moulting Varunidae |
topic |
Austrohelice Copulation Cyclograpsus Decalcification Guinusia Hard-Shell Mating Hemigrapsus Hemiplax Hinge Linemobility Leptograpsus Macrophthalmidae Mate Attraction Moulting Varunidae |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The derived condition in Brachyura is exhibited when mating is not linked to moulting (i.e. hard-shell mating). Grapsoid and ocypodid crabs have this type of mating wherein females become receptive and have mobile vulvae covered by operculae without moulting. The mobility of the operculae has been attributed to a decalcification process although it has never been demonstrated experimentally. We described the morphology of the vulvae (operculum and hinge) and measure calcium levels employing X-ray Energy Dispersive Spectroscopy of the intermoult immature and mature female of several different species of grapsoid crabs: Austrohelice crassa, Cyclograpsus lavauxi, Hemigrapsus crenulatus, Hemigrapsus sexdentatus (Varunidae), Guinusia chabrus (Plagusiidae), Leptograpsus variegatus (Grapsidae), and the ocypodid Hemiplax hirtipes (Macrophthalmidae). We measured calcium levels during a reproductive cycle in the case of H. sexdentatus. In all the studied species the opercula and hinge had lower calcium levels compared to the adjacent exoskeleton, and the hinge showed the lowest values of calcium (9.7 and 40.8 weight%, respectively). Immature and adult crabs showed that the distribution of calcium remains the same after the pubertal moult as it was before. Furthermore, in H. sexdentatus, hinge calcium levels do not change during the female reproductive cycle when females become receptive. It is suggested that an alternative mechanism, not related to decalcification, could be involved in promoting mobility of the hinge in receptive females of these species. We need to modify our ideas of the processes involved in female receptivity in all these crabs with an operculate vulva and hence mate attraction. Answers to these questions are the key to understanding how the linkage of mating to moulting was broken. Fil: McLay, Colin L.. University Of Canterbury; Nueva Zelanda Fil: Sal Moyano, María Paz. 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 Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina |
description |
The derived condition in Brachyura is exhibited when mating is not linked to moulting (i.e. hard-shell mating). Grapsoid and ocypodid crabs have this type of mating wherein females become receptive and have mobile vulvae covered by operculae without moulting. The mobility of the operculae has been attributed to a decalcification process although it has never been demonstrated experimentally. We described the morphology of the vulvae (operculum and hinge) and measure calcium levels employing X-ray Energy Dispersive Spectroscopy of the intermoult immature and mature female of several different species of grapsoid crabs: Austrohelice crassa, Cyclograpsus lavauxi, Hemigrapsus crenulatus, Hemigrapsus sexdentatus (Varunidae), Guinusia chabrus (Plagusiidae), Leptograpsus variegatus (Grapsidae), and the ocypodid Hemiplax hirtipes (Macrophthalmidae). We measured calcium levels during a reproductive cycle in the case of H. sexdentatus. In all the studied species the opercula and hinge had lower calcium levels compared to the adjacent exoskeleton, and the hinge showed the lowest values of calcium (9.7 and 40.8 weight%, respectively). Immature and adult crabs showed that the distribution of calcium remains the same after the pubertal moult as it was before. Furthermore, in H. sexdentatus, hinge calcium levels do not change during the female reproductive cycle when females become receptive. It is suggested that an alternative mechanism, not related to decalcification, could be involved in promoting mobility of the hinge in receptive females of these species. We need to modify our ideas of the processes involved in female receptivity in all these crabs with an operculate vulva and hence mate attraction. Answers to these questions are the key to understanding how the linkage of mating to moulting was broken. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03 |
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/11336/63526 McLay, Colin L.; Sal Moyano, María Paz; Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura); Crustacean Society; Journal of Crustacean Biology; 36; 2; 3-2016; 220-228 0278-0372 1937-240X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63526 |
identifier_str_mv |
McLay, Colin L.; Sal Moyano, María Paz; Calcium levels in the vulvar opercula of grapsoid and ocypodoid crabs (Decapoda: Brachyura); Crustacean Society; Journal of Crustacean Biology; 36; 2; 3-2016; 220-228 0278-0372 1937-240X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1163/1937240X-00002405 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jcb/article/36/2/220/2547967 |
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 |
Crustacean Society |
publisher.none.fl_str_mv |
Crustacean Society |
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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1844613921196998656 |
score |
13.070432 |