Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?

Autores
Jaubet, Maria Lourdes; Genzano, Gabriel Nestor
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hydropolyps inhabiting temperate ecosystems exhibit marked seasonality, and undergo regression as a normal part of their life cycle. In the campanulariid species Clytia gracilis, both hydroids and medusae are decidedly seasonal in occurrence. Epizoic colonies of C. gracilis, growing on colonies of Ectopleura crocea, were collected monthly in the intertidal zone at Mar del Plata, Argentina (38°08′S-57°37′W) during low tide from February 2000 to January 2001. Abundance, seasonality and reproductive periods were analysed. The hydroid reached peak abundance during the summer, yet reproductive structures were scarce and observed in only a few colonies. A remarkable regression period was evident in the cold season. During that period, hydroids of the species had few functional polyps, and the colonies were largely reduced to dormant tissue in the coenosarc of hydrocauli and stolons. Hydranths of C. gracilis regenerated during summer and produced a profuse asexual growth by stolonization. Asexual propagation is proposed as the prime mechanism in maintaining these hydroid populations. In comparisons of intertidal and subtidal populations of C. gracilis, available hydroid colonies of Amphisbetia operculata and Plumularia setacea collected from neighboring rocky outcrops (38°10′S-57°30′W), at depths of 18-20 m, during both warm and cold seasons were analysed. As in the intertidal populations, these colonies showed marked stolonal growth at the end of summer.
Fil: Jaubet, Maria Lourdes. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Genzano, Gabriel Nestor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
ASEXUAL PROPAGATION
CLYTIA GRACILIS
HYDROIDS
HYDROMEDUSAE
SEASONALITY
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:11336/100445
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?Jaubet, Maria LourdesGenzano, Gabriel NestorASEXUAL PROPAGATIONCLYTIA GRACILISHYDROIDSHYDROMEDUSAESEASONALITYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Hydropolyps inhabiting temperate ecosystems exhibit marked seasonality, and undergo regression as a normal part of their life cycle. In the campanulariid species Clytia gracilis, both hydroids and medusae are decidedly seasonal in occurrence. Epizoic colonies of C. gracilis, growing on colonies of Ectopleura crocea, were collected monthly in the intertidal zone at Mar del Plata, Argentina (38°08′S-57°37′W) during low tide from February 2000 to January 2001. Abundance, seasonality and reproductive periods were analysed. The hydroid reached peak abundance during the summer, yet reproductive structures were scarce and observed in only a few colonies. A remarkable regression period was evident in the cold season. During that period, hydroids of the species had few functional polyps, and the colonies were largely reduced to dormant tissue in the coenosarc of hydrocauli and stolons. Hydranths of C. gracilis regenerated during summer and produced a profuse asexual growth by stolonization. Asexual propagation is proposed as the prime mechanism in maintaining these hydroid populations. In comparisons of intertidal and subtidal populations of C. gracilis, available hydroid colonies of Amphisbetia operculata and Plumularia setacea collected from neighboring rocky outcrops (38°10′S-57°30′W), at depths of 18-20 m, during both warm and cold seasons were analysed. As in the intertidal populations, these colonies showed marked stolonal growth at the end of summer.Fil: Jaubet, Maria Lourdes. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Genzano, Gabriel Nestor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaTaylor & Francis2011-11info: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/11336/100445Jaubet, Maria Lourdes; Genzano, Gabriel Nestor; Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?; Taylor & Francis; Marine Biology Research; 7; 8; 11-2011; 804-8111745-1000CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2011.578650info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/17451000.2011.578650info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:11Zoai:ri.conicet.gov.ar:11336/100445instacron: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 10:47:11.977CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
title Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
spellingShingle Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
Jaubet, Maria Lourdes
ASEXUAL PROPAGATION
CLYTIA GRACILIS
HYDROIDS
HYDROMEDUSAE
SEASONALITY
title_short Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
title_full Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
title_fullStr Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
title_full_unstemmed Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
title_sort Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?
dc.creator.none.fl_str_mv Jaubet, Maria Lourdes
Genzano, Gabriel Nestor
author Jaubet, Maria Lourdes
author_facet Jaubet, Maria Lourdes
Genzano, Gabriel Nestor
author_role author
author2 Genzano, Gabriel Nestor
author2_role author
dc.subject.none.fl_str_mv ASEXUAL PROPAGATION
CLYTIA GRACILIS
HYDROIDS
HYDROMEDUSAE
SEASONALITY
topic ASEXUAL PROPAGATION
CLYTIA GRACILIS
HYDROIDS
HYDROMEDUSAE
SEASONALITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Hydropolyps inhabiting temperate ecosystems exhibit marked seasonality, and undergo regression as a normal part of their life cycle. In the campanulariid species Clytia gracilis, both hydroids and medusae are decidedly seasonal in occurrence. Epizoic colonies of C. gracilis, growing on colonies of Ectopleura crocea, were collected monthly in the intertidal zone at Mar del Plata, Argentina (38°08′S-57°37′W) during low tide from February 2000 to January 2001. Abundance, seasonality and reproductive periods were analysed. The hydroid reached peak abundance during the summer, yet reproductive structures were scarce and observed in only a few colonies. A remarkable regression period was evident in the cold season. During that period, hydroids of the species had few functional polyps, and the colonies were largely reduced to dormant tissue in the coenosarc of hydrocauli and stolons. Hydranths of C. gracilis regenerated during summer and produced a profuse asexual growth by stolonization. Asexual propagation is proposed as the prime mechanism in maintaining these hydroid populations. In comparisons of intertidal and subtidal populations of C. gracilis, available hydroid colonies of Amphisbetia operculata and Plumularia setacea collected from neighboring rocky outcrops (38°10′S-57°30′W), at depths of 18-20 m, during both warm and cold seasons were analysed. As in the intertidal populations, these colonies showed marked stolonal growth at the end of summer.
Fil: Jaubet, Maria Lourdes. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Genzano, Gabriel Nestor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Hydropolyps inhabiting temperate ecosystems exhibit marked seasonality, and undergo regression as a normal part of their life cycle. In the campanulariid species Clytia gracilis, both hydroids and medusae are decidedly seasonal in occurrence. Epizoic colonies of C. gracilis, growing on colonies of Ectopleura crocea, were collected monthly in the intertidal zone at Mar del Plata, Argentina (38°08′S-57°37′W) during low tide from February 2000 to January 2001. Abundance, seasonality and reproductive periods were analysed. The hydroid reached peak abundance during the summer, yet reproductive structures were scarce and observed in only a few colonies. A remarkable regression period was evident in the cold season. During that period, hydroids of the species had few functional polyps, and the colonies were largely reduced to dormant tissue in the coenosarc of hydrocauli and stolons. Hydranths of C. gracilis regenerated during summer and produced a profuse asexual growth by stolonization. Asexual propagation is proposed as the prime mechanism in maintaining these hydroid populations. In comparisons of intertidal and subtidal populations of C. gracilis, available hydroid colonies of Amphisbetia operculata and Plumularia setacea collected from neighboring rocky outcrops (38°10′S-57°30′W), at depths of 18-20 m, during both warm and cold seasons were analysed. As in the intertidal populations, these colonies showed marked stolonal growth at the end of summer.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/100445
Jaubet, Maria Lourdes; Genzano, Gabriel Nestor; Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?; Taylor & Francis; Marine Biology Research; 7; 8; 11-2011; 804-811
1745-1000
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100445
identifier_str_mv Jaubet, Maria Lourdes; Genzano, Gabriel Nestor; Seasonality and reproductive periods of the hydroid Clytia gracilis in temperate littoral ecosystems. Is asexual reproduction the prime mechanism in maintaining populations?; Taylor & Francis; Marine Biology Research; 7; 8; 11-2011; 804-811
1745-1000
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2011.578650
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/17451000.2011.578650
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 Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
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 13.070432

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