Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms

Este artículo contiene 9 páginas, 2 figuras, 1 tabla.

Detalles Bibliográficos
Autores: Mariani, Simone, Uriz, María Jesús, Turon, Xavier
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/149074
Acceso en línea:http://hdl.handle.net/10261/149074
Access Level:acceso abierto
Palabra clave:Dispersal
Formalin preservation
Invertebrate larvae
Sponges
Bryozoans
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spelling Methodological bias in the estimations of important meroplanktonic components from near-shore bottomsMariani, SimoneUriz, María JesúsTuron, XavierDispersalFormalin preservationInvertebrate larvaeSpongesBryozoansEste artículo contiene 9 páginas, 2 figuras, 1 tabla.In spite of the many direct observations on larval release, the presence of lecithotrophic larvae of sponges and bryozoans has either been anecdotally or never reported in plankton studies. We collected plankton over an artificial rocky reef and on adjacent sandy bottoms in the NW Mediterranean and compared larval abundance and species richness of the major groups of invertebrates found over each of such substrates. Observations in the laboratory showed that formalin (4% in seawater) irreversibly damaged most sponge larvae. To elude the effects of preservation and make it possible to culture larvae for later identification of juveniles, the samples were first identified in vivo and successively fixed. We compared larval abundance and species richness of the major groups of invertebrates found between samples observed in vivo and after preservation with formalin (a posteriori). The majority of the sponge larvae (93%) were only visible in the samples observed in vivo whereas abundance estimations of bryozoan and ascidian larvae were equally achieved with both methods. Estimations of the species richness were biased after sample preservation for sponge and bryozoan larvae. We found significant differences between the numbers of planktotrophic larvae observed a posteriori and in vivo. Sponge larvae were the most abundant plankton collected over the reef where the adults live (38% of the total larvae; maximum: 100 ind. m–3) and among the most abundant over the sandy bottom (13%). Bryozoan and ascidian larvae were scarce over both substrates (<1% of the total) even though they were more abundant near parental habitats than on the sandy bottoms. Gastropod and mussel veligers and spionid larvae were the most abundant planktotrophic larvae. Early and late developmental stages of long-lived larvae such as those of barnacles and late stages of polychaetes and echinoderms were mostly collected over parental habitats (either the reef or sandy bottoms). From this report it appears that the importance of lecithotrophic larvae of sponges and bryozoans in near-shore meroplankton assemblages needs to be examined further.This research was supported by the European Commission (Marie Curie Fellowship to S.M. and INTAS 971-854 to M.J.U.) and the Spanish CICYT Agency (REN2001-2312).Peer reviewedInter ResearchConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201720172003info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/149074reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3354/meps253067Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1490742026-05-22T06:33:51Z
dc.title.none.fl_str_mv Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
title Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
spellingShingle Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
Mariani, Simone
Dispersal
Formalin preservation
Invertebrate larvae
Sponges
Bryozoans
title_short Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
title_full Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
title_fullStr Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
title_full_unstemmed Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
title_sort Methodological bias in the estimations of important meroplanktonic components from near-shore bottoms
dc.creator.none.fl_str_mv Mariani, Simone
Uriz, María Jesús
Turon, Xavier
author Mariani, Simone
author_facet Mariani, Simone
Uriz, María Jesús
Turon, Xavier
author_role author
author2 Uriz, María Jesús
Turon, Xavier
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Dispersal
Formalin preservation
Invertebrate larvae
Sponges
Bryozoans
topic Dispersal
Formalin preservation
Invertebrate larvae
Sponges
Bryozoans
description Este artículo contiene 9 páginas, 2 figuras, 1 tabla.
publishDate 2003
dc.date.none.fl_str_mv 2003
2017
2017
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/10261/149074
url http://hdl.handle.net/10261/149074
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3354/meps253067
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
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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score 15,811543

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