Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus

6 figuras, 1 tabla

Detalles Bibliográficos
Autores: Freites, L., García, Natividad, Troccoli, Luis, Maeda-Martínez, Alfonso N., Fernández-Reiriz, María José
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::e2caee5fac35b5801dbe403254481a0b
Acceso en línea:http://hdl.handle.net/10261/48033
Access Level:acceso abierto
Palabra clave:Reproduction
Fatty acids
Scallop
Nodipecten nodosus
Upwelling season
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spelling Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosusFreites, L.García, NatividadTroccoli, LuisMaeda-Martínez, Alfonso N.Fernández-Reiriz, María JoséReproductionFatty acidsScallopNodipecten nodosusUpwelling season6 figuras, 1 tablaWe examined the influence of the reproductive cycle and environmental variables on the gonadal fatty acid profile in the tropical scallop Nodipecten nodosus. Individuals from a natural population in north-eastern Venezuela (Caribbean Sea) were sampled monthly during one year. The gonadosomatic index (GSI) and a visual assessment of gonadic status are also reported. The environmental conditions characterized by chlorophyll a, temperature and seston concentration were measured in parallel. The highest reproductive activity, with a GSI of 13–18%, was observed from November 2003 to April 2004, and a decrease in GSI, taken as an indication of three spawning periods, was recorded in October, January and May–June. The GSI was 5–8% outside these intervals. A similar trend was observed in maturity stage frequency. Statistical analysis (MDS-ANOSIM) established two different periods; one dominated by upwelling (January to July) and the other characteristic of non-upwelling conditions (August to December). The fatty acids 16:0, 22:6n-3, 20:5n-3 and 16:1n-7 were responsible for the differences between two periods and explained 50% of the observed variance. Accordingly, during the upwelling period, fatty acids such as 22:6n-3 were positively correlated with temperature, organic seston and bivalves in the spent sexual stage and inversely related to the GSI. Furthermore, individuals in the ripe sexual stage were positively related to 20:5n-3 and 18:3n-3, whereas chlorophyll a was directly related to 18:1n-7 and 16:1n-7. In the non-upwelling period, a significant and positive correlation was obtained between fatty acids such as 20:5n-3 and 22:6n-3 and the GSI and the bivalves in the ripe sexual stage, whereas these acids were inversely correlated with the spent sexual stage. In addition, chlorophyll a was positively related to 18:1n-9 and 18:2n-6. Changes in the gonadal fatty acid profile of N. nodosus were influenced by the environmentalvariables (exogenous factors) during the upwelling and non-upwelling periods and by reproductions (endogenous factors).This research was partly financed by the Consejo de Investigación de la Universidad de Oriente (Project CI-6-2502-0857/99).Peer reviewedElsevier201220122010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/48033reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.cbpb.2010.09.001info:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::e2caee5fac35b5801dbe403254481a0b2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
title Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
spellingShingle Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
Freites, L.
Reproduction
Fatty acids
Scallop
Nodipecten nodosus
Upwelling season
title_short Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
title_full Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
title_fullStr Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
title_full_unstemmed Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
title_sort Influence of environmental variables and reproduction on the gonadal fatty acid profile of tropical scallop Nodipecten nodosus
dc.creator.none.fl_str_mv Freites, L.
García, Natividad
Troccoli, Luis
Maeda-Martínez, Alfonso N.
Fernández-Reiriz, María José
author Freites, L.
author_facet Freites, L.
García, Natividad
Troccoli, Luis
Maeda-Martínez, Alfonso N.
Fernández-Reiriz, María José
author_role author
author2 García, Natividad
Troccoli, Luis
Maeda-Martínez, Alfonso N.
Fernández-Reiriz, María José
author2_role author
author
author
author
dc.subject.none.fl_str_mv Reproduction
Fatty acids
Scallop
Nodipecten nodosus
Upwelling season
topic Reproduction
Fatty acids
Scallop
Nodipecten nodosus
Upwelling season
description 6 figuras, 1 tabla
publishDate 2010
dc.date.none.fl_str_mv 2010
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/48033
url http://hdl.handle.net/10261/48033
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.cbpb.2010.09.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869413339264712704
score 15,812455

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