Effects of a predatory starfish on substrate colonization by a dominant mussel

Autores
Hidalgo, Fernando Jose; Firstater, Fausto Nahuel; Lomovasky, Betina Judith; Iribarne, Oscar Osvaldo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The pressure exerted by consumers has generally been considered to be among the main factors affecting the structure and processes in marine communities. Here, we assessed the effects of the predatory starfish Heliaster helianthus on substrate colonization by the dominant mussel Semimytilus algosus in a rocky intertidal area of the central Peruvian coast. We conducted 3 experiments: exclusions of starfish (1) from the edge of mussel beds, (2) from areas on bare substrate and (3) from areas surrounding recruitment mediators (i.e. branched macroalgae). The exclusion of H. helianthus resulted in increased cover of S. algosus in the 3 experiments. However, the colonization of the available space by S. algosus in the absence of starfish was more evident when facilitated by recruitment mediators or by migration from the edge of mussel beds than when colonization occurred during succession starting from bare substrate. By the end of the study period, however, increased S. algosus abundance, which coincided with the end of the cold phase (La Niña) of the El Niño-Southern Oscillation, overwhelmed the effects of starfish. We suggest that periodic oceanographic fluctuations are also important in controlling community dynamics in Peruvian rocky intertidal zones, highlighting the variation in the relative importance of top-down versus bottom-up control when different temporal scales are considered.
Fil: Hidalgo, Fernando Jose. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Firstater, Fausto Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Lomovasky, Betina Judith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Materia
HELIASTER HELIANTHUS
PERU
PREDATION
ROCKY INTERTIDAL
SEMIMYTILUS ALGOSUS
STARFISH
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:11336/100645
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/100645
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Effects of a predatory starfish on substrate colonization by a dominant musselHidalgo, Fernando JoseFirstater, Fausto NahuelLomovasky, Betina JudithIribarne, Oscar OsvaldoHELIASTER HELIANTHUSPERUPREDATIONROCKY INTERTIDALSEMIMYTILUS ALGOSUSSTARFISHhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The pressure exerted by consumers has generally been considered to be among the main factors affecting the structure and processes in marine communities. Here, we assessed the effects of the predatory starfish Heliaster helianthus on substrate colonization by the dominant mussel Semimytilus algosus in a rocky intertidal area of the central Peruvian coast. We conducted 3 experiments: exclusions of starfish (1) from the edge of mussel beds, (2) from areas on bare substrate and (3) from areas surrounding recruitment mediators (i.e. branched macroalgae). The exclusion of H. helianthus resulted in increased cover of S. algosus in the 3 experiments. However, the colonization of the available space by S. algosus in the absence of starfish was more evident when facilitated by recruitment mediators or by migration from the edge of mussel beds than when colonization occurred during succession starting from bare substrate. By the end of the study period, however, increased S. algosus abundance, which coincided with the end of the cold phase (La Niña) of the El Niño-Southern Oscillation, overwhelmed the effects of starfish. We suggest that periodic oceanographic fluctuations are also important in controlling community dynamics in Peruvian rocky intertidal zones, highlighting the variation in the relative importance of top-down versus bottom-up control when different temporal scales are considered.Fil: Hidalgo, Fernando Jose. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Firstater, Fausto Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Lomovasky, Betina Judith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaInter-Research2011-06info: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/11336/100645Hidalgo, Fernando Jose; Firstater, Fausto Nahuel; Lomovasky, Betina Judith; Iribarne, Oscar Osvaldo; Effects of a predatory starfish on substrate colonization by a dominant mussel; Inter-Research; Marine Ecology Progress Series; 432; 6-2011; 103-1140171-8630CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/meps09163info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/articles/meps2011/432/m432p103.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:19:52Zoai:ri.conicet.gov.ar:11336/100645instacron: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:34982025-10-22 12:19:52.285CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of a predatory starfish on substrate colonization by a dominant mussel
title Effects of a predatory starfish on substrate colonization by a dominant mussel
spellingShingle Effects of a predatory starfish on substrate colonization by a dominant mussel
Hidalgo, Fernando Jose
HELIASTER HELIANTHUS
PERU
PREDATION
ROCKY INTERTIDAL
SEMIMYTILUS ALGOSUS
STARFISH
title_short Effects of a predatory starfish on substrate colonization by a dominant mussel
title_full Effects of a predatory starfish on substrate colonization by a dominant mussel
title_fullStr Effects of a predatory starfish on substrate colonization by a dominant mussel
title_full_unstemmed Effects of a predatory starfish on substrate colonization by a dominant mussel
title_sort Effects of a predatory starfish on substrate colonization by a dominant mussel
dc.creator.none.fl_str_mv Hidalgo, Fernando Jose
Firstater, Fausto Nahuel
Lomovasky, Betina Judith
Iribarne, Oscar Osvaldo
author Hidalgo, Fernando Jose
author_facet Hidalgo, Fernando Jose
Firstater, Fausto Nahuel
Lomovasky, Betina Judith
Iribarne, Oscar Osvaldo
author_role author
author2 Firstater, Fausto Nahuel
Lomovasky, Betina Judith
Iribarne, Oscar Osvaldo
author2_role author
author
author
dc.subject.none.fl_str_mv HELIASTER HELIANTHUS
PERU
PREDATION
ROCKY INTERTIDAL
SEMIMYTILUS ALGOSUS
STARFISH
topic HELIASTER HELIANTHUS
PERU
PREDATION
ROCKY INTERTIDAL
SEMIMYTILUS ALGOSUS
STARFISH
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The pressure exerted by consumers has generally been considered to be among the main factors affecting the structure and processes in marine communities. Here, we assessed the effects of the predatory starfish Heliaster helianthus on substrate colonization by the dominant mussel Semimytilus algosus in a rocky intertidal area of the central Peruvian coast. We conducted 3 experiments: exclusions of starfish (1) from the edge of mussel beds, (2) from areas on bare substrate and (3) from areas surrounding recruitment mediators (i.e. branched macroalgae). The exclusion of H. helianthus resulted in increased cover of S. algosus in the 3 experiments. However, the colonization of the available space by S. algosus in the absence of starfish was more evident when facilitated by recruitment mediators or by migration from the edge of mussel beds than when colonization occurred during succession starting from bare substrate. By the end of the study period, however, increased S. algosus abundance, which coincided with the end of the cold phase (La Niña) of the El Niño-Southern Oscillation, overwhelmed the effects of starfish. We suggest that periodic oceanographic fluctuations are also important in controlling community dynamics in Peruvian rocky intertidal zones, highlighting the variation in the relative importance of top-down versus bottom-up control when different temporal scales are considered.
Fil: Hidalgo, Fernando Jose. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Firstater, Fausto Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Lomovasky, Betina Judith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
description The pressure exerted by consumers has generally been considered to be among the main factors affecting the structure and processes in marine communities. Here, we assessed the effects of the predatory starfish Heliaster helianthus on substrate colonization by the dominant mussel Semimytilus algosus in a rocky intertidal area of the central Peruvian coast. We conducted 3 experiments: exclusions of starfish (1) from the edge of mussel beds, (2) from areas on bare substrate and (3) from areas surrounding recruitment mediators (i.e. branched macroalgae). The exclusion of H. helianthus resulted in increased cover of S. algosus in the 3 experiments. However, the colonization of the available space by S. algosus in the absence of starfish was more evident when facilitated by recruitment mediators or by migration from the edge of mussel beds than when colonization occurred during succession starting from bare substrate. By the end of the study period, however, increased S. algosus abundance, which coincided with the end of the cold phase (La Niña) of the El Niño-Southern Oscillation, overwhelmed the effects of starfish. We suggest that periodic oceanographic fluctuations are also important in controlling community dynamics in Peruvian rocky intertidal zones, highlighting the variation in the relative importance of top-down versus bottom-up control when different temporal scales are considered.
publishDate 2011
dc.date.none.fl_str_mv 2011-06
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/11336/100645
Hidalgo, Fernando Jose; Firstater, Fausto Nahuel; Lomovasky, Betina Judith; Iribarne, Oscar Osvaldo; Effects of a predatory starfish on substrate colonization by a dominant mussel; Inter-Research; Marine Ecology Progress Series; 432; 6-2011; 103-114
0171-8630
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100645
identifier_str_mv Hidalgo, Fernando Jose; Firstater, Fausto Nahuel; Lomovasky, Betina Judith; Iribarne, Oscar Osvaldo; Effects of a predatory starfish on substrate colonization by a dominant mussel; Inter-Research; Marine Ecology Progress Series; 432; 6-2011; 103-114
0171-8630
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09163
info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/articles/meps2011/432/m432p103.pdf
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 Inter-Research
publisher.none.fl_str_mv Inter-Research
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 12.982451

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