Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile

Calyptogena gallardoi is a vesicomyid bivalve inhabiting a methane seep area located at a depth of 740-870 m off the Bay of Concepcion, Chile. Vesicomyids host chemoautotrophic sulphide-oxidizing endosymbiont bacteria and are always found associated to reducing environments. In this study, the gonad...

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Autores: Sellanes-López, Rogelio, Krylova, Elena, Parra, Macarena
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/198014
Acesso em linha:https://hdl.handle.net/10533/198014
Access Level:acceso abierto
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spelling Parra, MacarenaKrylova, ElenaSellanes-López, Rogelio200910.1017/S0025315408002397https://hdl.handle.net/10533/198014http://purl.org/coar/access_right/c_abf2Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile169161GBRNEW YORKSellanes-López, RogelioKrylova, ElenaParra, Macarena2017-04-27T18:53:58Z2022-07-07T02:27:57Z2017-04-27T18:53:58Z2022-07-07T02:27:57Z2009Calyptogena gallardoi is a vesicomyid bivalve inhabiting a methane seep area located at a depth of 740-870 m off the Bay of Concepcion, Chile. Vesicomyids host chemoautotrophic sulphide-oxidizing endosymbiont bacteria and are always found associated to reducing environments. In this study, the gonadal structure and the gametes produced by C. gallardoi are described. Light microscopy is used to examine serial histological sections of the gonads, and scanning electron microscopy is used to visualize the external morphology of gametes. The gonads of both males and females are organized in ramified tubular acini. In males, mature sperm are stored near genital openings in acini lined with a secretor epithelium that resembles a seminal receptacle. Spermatozoids have bullet-like heads with an average length Of 30.3 +/- 2.6 mu m (mean +/- 1 SD). In females, the mature oocytes are driven toward the genital opening through evacuator conduits lined by 'paddle' cilia. The average diameter of oogonias is 11.6 +/- 2.5 mu m and that of mature oocytes is 273.8 +/- 23.1 mu m, making the size of the mature oocyte among the largest reported for bivalves. In addition, C. gallardoi is shown to have external sexual dimorphism. Shells of males are significantly smaller and more elongated with sloping postero-dorsal margin compared with shells of females. The data are discussed in the context Of available information on reproductive biology of vesicomyids.05FONDEFsellanes@ucn.cl01FONDEF891469-7769D04I1111D04I1111virtual::19597-1WOS:000264335600019WOS:0002643356000190025-3154https://hdl.handle.net/10533/198014CAMBRIDGE UNIV PRESSinstname: Conicytreponame: Repositorio Digital RI2.0instname: Conicytreponame: Repositorio Digital RI2.010.1017/S0025315408002397info:eu-repo/grantAgreement/Fondef/D04I1111info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477https://doi.org/10.1017/S0025315408002397info:eu-repo/semantics/openAccessReproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chileJOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM (PRINT)J. Mar. Biol. Assoc. U.K.Articuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionengArticulohttps://hdl.handle.net/10533/198014FONDEFhttp://purl.org/coar/resource_type/c_2df8fbb13bff9df4-54a6-428b-a8fc-4895896035cbvirtual::19597-13bff9df4-54a6-428b-a8fc-4895896035cbvirtual::19597-110533/198014oai:repositorio.anid.cl:10533/1980142023-07-24 18:08:25.922https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
dc.title.journal.none.fl_str_mv JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM (PRINT)
dc.title.journalabbreviation.none.fl_str_mv J. Mar. Biol. Assoc. U.K.
title Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
spellingShingle Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
Sellanes-López, Rogelio
title_short Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
title_full Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
title_fullStr Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
title_full_unstemmed Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
title_sort Reproductive characteristics of calyptogena gallardoi (bivalvia: vesicomyidae) from a methane seep area off concepcion, chile
dc.creator.none.fl_str_mv Sellanes-López, Rogelio
Krylova, Elena
Parra, Macarena
author Sellanes-López, Rogelio
author_facet Sellanes-López, Rogelio
Krylova, Elena
Parra, Macarena
author_role author
author2 Krylova, Elena
Parra, Macarena
author2_role author
author
description Calyptogena gallardoi is a vesicomyid bivalve inhabiting a methane seep area located at a depth of 740-870 m off the Bay of Concepcion, Chile. Vesicomyids host chemoautotrophic sulphide-oxidizing endosymbiont bacteria and are always found associated to reducing environments. In this study, the gonadal structure and the gametes produced by C. gallardoi are described. Light microscopy is used to examine serial histological sections of the gonads, and scanning electron microscopy is used to visualize the external morphology of gametes. The gonads of both males and females are organized in ramified tubular acini. In males, mature sperm are stored near genital openings in acini lined with a secretor epithelium that resembles a seminal receptacle. Spermatozoids have bullet-like heads with an average length Of 30.3 +/- 2.6 mu m (mean +/- 1 SD). In females, the mature oocytes are driven toward the genital opening through evacuator conduits lined by 'paddle' cilia. The average diameter of oogonias is 11.6 +/- 2.5 mu m and that of mature oocytes is 273.8 +/- 23.1 mu m, making the size of the mature oocyte among the largest reported for bivalves. In addition, C. gallardoi is shown to have external sexual dimorphism. Shells of males are significantly smaller and more elongated with sloping postero-dorsal margin compared with shells of females. The data are discussed in the context Of available information on reproductive biology of vesicomyids.
publishDate 2009
dc.date.issued.none.fl_str_mv 2009
dc.date.accessioned.none.fl_str_mv 2017-04-27T18:53:58Z
2022-07-07T02:27:57Z
dc.date.available.none.fl_str_mv 2017-04-27T18:53:58Z
2022-07-07T02:27:57Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.eissn.none.fl_str_mv 1469-7769
dc.identifier.folio.none.fl_str_mv D04I1111
D04I1111
dc.identifier.idwos.none.fl_str_mv WOS:000264335600019
dc.identifier.isi.none.fl_str_mv WOS:000264335600019
dc.identifier.issn.none.fl_str_mv 0025-3154
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/198014
identifier_str_mv 1469-7769
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WOS:000264335600019
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url https://hdl.handle.net/10533/198014
dc.language.*.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1017/S0025315408002397
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondef/D04I1111
dc.relation.set.none.fl_str_mv info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relation.uri.none.fl_str_mv https://doi.org/10.1017/S0025315408002397
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.coverage.spatial.none.fl_str_mv NEW YORK
dc.publisher.none.fl_str_mv CAMBRIDGE UNIV PRESS
publisher.none.fl_str_mv CAMBRIDGE UNIV PRESS
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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