Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)

Autores
Cledón, Maximiliano; Penchaszadeh, Pablo Enrique
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Crepidula argentina is a protandric hermaphrodite that undergoes complete sex change. Males develop a mature gonad when the shell length is 4 mm. Sex change begíns when shell length is around 8 mm and continues until 11 mm, when the first pre-vitellogenic oocytes are found. The minimum and maximum shelllengths for a brooding female are respectively 15 and 36 mm. There is a well-defined seasonal reproductive cycle; females brood between August and April. Females brood between 10 and 46 (mean 25) egg capsules per egg mass. The intracapsular Huid is translucent and viscous in recently laíd capsules but becomes less dense closer to hatching. Neither nurse eggs nor cannibalism have been observed. The mean number of eggs per mass was 5600 ± 3300. The egg capsules have a mean width of 2.1 mm (SD = 0.03 mm, = 52), and a mean length of 2.4 mm (SD = 0.04 mm, = 52). Each egg capsule contains about 320 embryos. The uncleaved egg diameter is about 170 u.m. All eggs develop synchronously in the same brood. The embryos hatch as planktotrophic veligers with a shell length of 190-230 um and a bilobed velum about 160 u.m in width. The mean size of the egg capsules, number of embryos per egg capsule, and number of embryos per brood are positively correlated wíth female shell length.
Fil: Cledón, Maximiliano. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Penchaszadeh, Pablo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Materia
REPRODUCTION
CREPIDULA
GASTROPODA
MOLLUSCA
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:11336/136481
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)Cledón, MaximilianoPenchaszadeh, Pablo EnriqueREPRODUCTIONCREPIDULAGASTROPODAMOLLUSCAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Crepidula argentina is a protandric hermaphrodite that undergoes complete sex change. Males develop a mature gonad when the shell length is 4 mm. Sex change begíns when shell length is around 8 mm and continues until 11 mm, when the first pre-vitellogenic oocytes are found. The minimum and maximum shelllengths for a brooding female are respectively 15 and 36 mm. There is a well-defined seasonal reproductive cycle; females brood between August and April. Females brood between 10 and 46 (mean 25) egg capsules per egg mass. The intracapsular Huid is translucent and viscous in recently laíd capsules but becomes less dense closer to hatching. Neither nurse eggs nor cannibalism have been observed. The mean number of eggs per mass was 5600 ± 3300. The egg capsules have a mean width of 2.1 mm (SD = 0.03 mm, = 52), and a mean length of 2.4 mm (SD = 0.04 mm, = 52). Each egg capsule contains about 320 embryos. The uncleaved egg diameter is about 170 u.m. All eggs develop synchronously in the same brood. The embryos hatch as planktotrophic veligers with a shell length of 190-230 um and a bilobed velum about 160 u.m in width. The mean size of the egg capsules, number of embryos per egg capsule, and number of embryos per brood are positively correlated wíth female shell length.Fil: Cledón, Maximiliano. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Penchaszadeh, Pablo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaBailey-Matthews Shell Museum2001-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/136481Cledón, Maximiliano; Penchaszadeh, Pablo Enrique; Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae); Bailey-Matthews Shell Museum; The Nautilus; 115; 1; 6-2001; 15-210028-1344CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.biodiversitylibrary.org/item/33811#page/23/mode/1upinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:26Zoai:ri.conicet.gov.ar:11336/136481instacron: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:34982025-09-03 09:48:26.427CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
title Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
spellingShingle Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
Cledón, Maximiliano
REPRODUCTION
CREPIDULA
GASTROPODA
MOLLUSCA
title_short Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
title_full Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
title_fullStr Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
title_full_unstemmed Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
title_sort Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
dc.creator.none.fl_str_mv Cledón, Maximiliano
Penchaszadeh, Pablo Enrique
author Cledón, Maximiliano
author_facet Cledón, Maximiliano
Penchaszadeh, Pablo Enrique
author_role author
author2 Penchaszadeh, Pablo Enrique
author2_role author
dc.subject.none.fl_str_mv REPRODUCTION
CREPIDULA
GASTROPODA
MOLLUSCA
topic REPRODUCTION
CREPIDULA
GASTROPODA
MOLLUSCA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Crepidula argentina is a protandric hermaphrodite that undergoes complete sex change. Males develop a mature gonad when the shell length is 4 mm. Sex change begíns when shell length is around 8 mm and continues until 11 mm, when the first pre-vitellogenic oocytes are found. The minimum and maximum shelllengths for a brooding female are respectively 15 and 36 mm. There is a well-defined seasonal reproductive cycle; females brood between August and April. Females brood between 10 and 46 (mean 25) egg capsules per egg mass. The intracapsular Huid is translucent and viscous in recently laíd capsules but becomes less dense closer to hatching. Neither nurse eggs nor cannibalism have been observed. The mean number of eggs per mass was 5600 ± 3300. The egg capsules have a mean width of 2.1 mm (SD = 0.03 mm, = 52), and a mean length of 2.4 mm (SD = 0.04 mm, = 52). Each egg capsule contains about 320 embryos. The uncleaved egg diameter is about 170 u.m. All eggs develop synchronously in the same brood. The embryos hatch as planktotrophic veligers with a shell length of 190-230 um and a bilobed velum about 160 u.m in width. The mean size of the egg capsules, number of embryos per egg capsule, and number of embryos per brood are positively correlated wíth female shell length.
Fil: Cledón, Maximiliano. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Penchaszadeh, Pablo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
description Crepidula argentina is a protandric hermaphrodite that undergoes complete sex change. Males develop a mature gonad when the shell length is 4 mm. Sex change begíns when shell length is around 8 mm and continues until 11 mm, when the first pre-vitellogenic oocytes are found. The minimum and maximum shelllengths for a brooding female are respectively 15 and 36 mm. There is a well-defined seasonal reproductive cycle; females brood between August and April. Females brood between 10 and 46 (mean 25) egg capsules per egg mass. The intracapsular Huid is translucent and viscous in recently laíd capsules but becomes less dense closer to hatching. Neither nurse eggs nor cannibalism have been observed. The mean number of eggs per mass was 5600 ± 3300. The egg capsules have a mean width of 2.1 mm (SD = 0.03 mm, = 52), and a mean length of 2.4 mm (SD = 0.04 mm, = 52). Each egg capsule contains about 320 embryos. The uncleaved egg diameter is about 170 u.m. All eggs develop synchronously in the same brood. The embryos hatch as planktotrophic veligers with a shell length of 190-230 um and a bilobed velum about 160 u.m in width. The mean size of the egg capsules, number of embryos per egg capsule, and number of embryos per brood are positively correlated wíth female shell length.
publishDate 2001
dc.date.none.fl_str_mv 2001-06
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/11336/136481
Cledón, Maximiliano; Penchaszadeh, Pablo Enrique; Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae); Bailey-Matthews Shell Museum; The Nautilus; 115; 1; 6-2001; 15-21
0028-1344
CONICET Digital
CONICET
url http://hdl.handle.net/11336/136481
identifier_str_mv Cledón, Maximiliano; Penchaszadeh, Pablo Enrique; Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae); Bailey-Matthews Shell Museum; The Nautilus; 115; 1; 6-2001; 15-21
0028-1344
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.biodiversitylibrary.org/item/33811#page/23/mode/1up
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
application/pdf
dc.publisher.none.fl_str_mv Bailey-Matthews Shell Museum
publisher.none.fl_str_mv Bailey-Matthews Shell Museum
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
_version_ 1842268923774369792
score 13.13397

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