Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian

12 páginas, 8 figuras.

Detalles Bibliográficos
Autores: López-Legentil, S., Erwin, Patrick M., Velasco, Marta, Turon, Xavier
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::cdb731cecdccdda0eb331c9629e1dfd0
Acceso en línea:http://hdl.handle.net/10261/71638
Access Level:acceso abierto
Palabra clave:Temperatures
Tunicate
Growth
Maturity
Mediterranean
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spelling Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidianLópez-Legentil, S.Erwin, Patrick M.Velasco, MartaTuron, XavierTemperaturesTunicateGrowthMaturityMediterranean12 páginas, 8 figuras.Relatively little is known about the life cycles of ascidians in temperate seas. Here, we investigated the biological cycle of the colonial ascidian Didemnum fulgens, a dominant species in some shallow localities of the NW Mediterranean Sea. Growth rates and frequencies of fission/fusion events were calculated over a period of 13 months, and the reproductive cycle determined after 32 months of observation. For analyses of reproduction, zooids were dissected in the laboratory and classified into five reproductive categories; these data were used to calculate a maturity index. For growth analyses, underwater photographs of marked colonies were used to estimate the surface area of D. fulgens colonies, calculate monthly growth rates, and document fusion and fission events. Clear seasonal patterns in reproduction and growth were observed, with distinct periods of investment into each function. Gonad maturation started in winter and larval release occurred in early summer, just before maximal sea temperatures were reached. After reproducing, colonies shrank and aestivated during the warmer summer months. Growth occurred during the cooler months, with maximal and minimal growth rates observed in winter and summer, respectively. Fusions and fissions occurred year-round, although fissions were more frequent in fall (coincident with high growth rates) and fusions in spring (coincident with reproduction). These results add to the mounting evidence that ascidian life cycles in temperate seas are characterized by a trade-off between investment in reproduction and growth, triggered by seasonal temperature shifts and constrained by resource availability during summer.This research was funded by the Marie Curie International Reintegration Grant FP7-PEOPLE- 2010-RG 277038 within the 7th European Community Framework Program, the Spanish Government projects CTM2010-17755 and CTM2010-22218, and the Catalan Government grant 2009SGR-484 for Consolidated Research Groups.Peer reviewedWiley-Blackwell201320132013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/71638reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/ivb.12013info:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::cdb731cecdccdda0eb331c9629e1dfd02026-05-22T06:33:51Z
dc.title.none.fl_str_mv Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
title Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
spellingShingle Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
López-Legentil, S.
Temperatures
Tunicate
Growth
Maturity
Mediterranean
title_short Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
title_full Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
title_fullStr Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
title_full_unstemmed Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
title_sort Growing or reproducing in a temperate sea: Optimization of resource allocation in a colonial ascidian
dc.creator.none.fl_str_mv López-Legentil, S.
Erwin, Patrick M.
Velasco, Marta
Turon, Xavier
author López-Legentil, S.
author_facet López-Legentil, S.
Erwin, Patrick M.
Velasco, Marta
Turon, Xavier
author_role author
author2 Erwin, Patrick M.
Velasco, Marta
Turon, Xavier
author2_role author
author
author
dc.subject.none.fl_str_mv Temperatures
Tunicate
Growth
Maturity
Mediterranean
topic Temperatures
Tunicate
Growth
Maturity
Mediterranean
description 12 páginas, 8 figuras.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013
2013
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/10261/71638
url http://hdl.handle.net/10261/71638
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/ivb.12013
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
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
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