Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage

Autores
Calcagno, Javier Ángel; Curelovich, Jessica Natalia; Fernandez, Vanessa Maribel; Thatje, Sven; Lovrich, Gustavo Alejandro
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present for the first time the vulnerability to disturbance of a bivalve assemblage situated in the middle intertidal zone of the Atlantic coast of the Southern South America (53°36′S, 67°58′W). This intertidal zone is characterized by a high level of sand movement preventing any establishment of sessile organisms on the vertical sides of rock outcrops. The coast is prone to potential spills from nearby hydrocarbon marine platforms, but this benthic assemblage has been poorly studied. In February 2001, we exposed the assemblage to two different experimental conditions: a complete removal of bivalves and a physical disturbance and tracked its recovery during the following 4 years. The disturbance lowered the diversity of associated fauna and made the sediment layer trapped among bivalves disappear, which was not restored. Mytilus chilensis was recruited into crevices or between byssi in the following settlement season, i.e. summer 2002. The recuperation of mussel coverage to predisturbance levels took 3 years after the total removal. In April 2004 the size frequency distributions, density and biomass/number ratio of M. chilensis were similar to those at the start of the experiment. Perumytilus purpuratus recovered more slowly than M. chilensis, probably due to its slower growth rate compared to M. chilensis and dependence on an adequate byssus matrix for settlement. The main apparent stressor was the irruption of sand, covering the bivalve assemblage for variable periods of time. This bivalve assemblage is characterized by low predatory pressure and therefore we hypothesize that it is predominantly controlled by competition for space. © 2012 Copyright Taylor and Francis Group, LLC.
Fil: Calcagno, Javier Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Curelovich, Jessica Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernandez, Vanessa Maribel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Thatje, Sven. University of Southampton; Reino Unido
Fil: Lovrich, Gustavo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Materia
ARGENTINA
BENTHIC RESILIENCE
MUSSELS
MYTILUS CHILENSIS
PATAGONIA
PERUMYTILUS PURPURATUS
SOUTH-WESTERN ATLANTIC
TIERRA DEL FUEGO
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:11336/117066
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/117066
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblageCalcagno, Javier ÁngelCurelovich, Jessica NataliaFernandez, Vanessa MaribelThatje, SvenLovrich, Gustavo AlejandroARGENTINABENTHIC RESILIENCEMUSSELSMYTILUS CHILENSISPATAGONIAPERUMYTILUS PURPURATUSSOUTH-WESTERN ATLANTICTIERRA DEL FUEGOhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We present for the first time the vulnerability to disturbance of a bivalve assemblage situated in the middle intertidal zone of the Atlantic coast of the Southern South America (53°36′S, 67°58′W). This intertidal zone is characterized by a high level of sand movement preventing any establishment of sessile organisms on the vertical sides of rock outcrops. The coast is prone to potential spills from nearby hydrocarbon marine platforms, but this benthic assemblage has been poorly studied. In February 2001, we exposed the assemblage to two different experimental conditions: a complete removal of bivalves and a physical disturbance and tracked its recovery during the following 4 years. The disturbance lowered the diversity of associated fauna and made the sediment layer trapped among bivalves disappear, which was not restored. Mytilus chilensis was recruited into crevices or between byssi in the following settlement season, i.e. summer 2002. The recuperation of mussel coverage to predisturbance levels took 3 years after the total removal. In April 2004 the size frequency distributions, density and biomass/number ratio of M. chilensis were similar to those at the start of the experiment. Perumytilus purpuratus recovered more slowly than M. chilensis, probably due to its slower growth rate compared to M. chilensis and dependence on an adequate byssus matrix for settlement. The main apparent stressor was the irruption of sand, covering the bivalve assemblage for variable periods of time. This bivalve assemblage is characterized by low predatory pressure and therefore we hypothesize that it is predominantly controlled by competition for space. © 2012 Copyright Taylor and Francis Group, LLC.Fil: Calcagno, Javier Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Curelovich, Jessica Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fernandez, Vanessa Maribel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaFil: Thatje, Sven. University of Southampton; Reino UnidoFil: Lovrich, Gustavo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaTaylor & Francis As2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/117066Calcagno, Javier Ángel; Curelovich, Jessica Natalia; Fernandez, Vanessa Maribel; Thatje, Sven; Lovrich, Gustavo Alejandro; Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage; Taylor & Francis As; Marine Biology Research; 8; 10; 12-2012; 937-9531745-1000CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2012.702911info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T15:16:47Zoai:ri.conicet.gov.ar:11336/117066instacron: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:34982026-03-31 15:16:48.012CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
title Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
spellingShingle Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
Calcagno, Javier Ángel
ARGENTINA
BENTHIC RESILIENCE
MUSSELS
MYTILUS CHILENSIS
PATAGONIA
PERUMYTILUS PURPURATUS
SOUTH-WESTERN ATLANTIC
TIERRA DEL FUEGO
title_short Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
title_full Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
title_fullStr Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
title_full_unstemmed Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
title_sort Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage
dc.creator.none.fl_str_mv Calcagno, Javier Ángel
Curelovich, Jessica Natalia
Fernandez, Vanessa Maribel
Thatje, Sven
Lovrich, Gustavo Alejandro
author Calcagno, Javier Ángel
author_facet Calcagno, Javier Ángel
Curelovich, Jessica Natalia
Fernandez, Vanessa Maribel
Thatje, Sven
Lovrich, Gustavo Alejandro
author_role author
author2 Curelovich, Jessica Natalia
Fernandez, Vanessa Maribel
Thatje, Sven
Lovrich, Gustavo Alejandro
author2_role author
author
author
author
dc.subject.none.fl_str_mv ARGENTINA
BENTHIC RESILIENCE
MUSSELS
MYTILUS CHILENSIS
PATAGONIA
PERUMYTILUS PURPURATUS
SOUTH-WESTERN ATLANTIC
TIERRA DEL FUEGO
topic ARGENTINA
BENTHIC RESILIENCE
MUSSELS
MYTILUS CHILENSIS
PATAGONIA
PERUMYTILUS PURPURATUS
SOUTH-WESTERN ATLANTIC
TIERRA DEL FUEGO
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present for the first time the vulnerability to disturbance of a bivalve assemblage situated in the middle intertidal zone of the Atlantic coast of the Southern South America (53°36′S, 67°58′W). This intertidal zone is characterized by a high level of sand movement preventing any establishment of sessile organisms on the vertical sides of rock outcrops. The coast is prone to potential spills from nearby hydrocarbon marine platforms, but this benthic assemblage has been poorly studied. In February 2001, we exposed the assemblage to two different experimental conditions: a complete removal of bivalves and a physical disturbance and tracked its recovery during the following 4 years. The disturbance lowered the diversity of associated fauna and made the sediment layer trapped among bivalves disappear, which was not restored. Mytilus chilensis was recruited into crevices or between byssi in the following settlement season, i.e. summer 2002. The recuperation of mussel coverage to predisturbance levels took 3 years after the total removal. In April 2004 the size frequency distributions, density and biomass/number ratio of M. chilensis were similar to those at the start of the experiment. Perumytilus purpuratus recovered more slowly than M. chilensis, probably due to its slower growth rate compared to M. chilensis and dependence on an adequate byssus matrix for settlement. The main apparent stressor was the irruption of sand, covering the bivalve assemblage for variable periods of time. This bivalve assemblage is characterized by low predatory pressure and therefore we hypothesize that it is predominantly controlled by competition for space. © 2012 Copyright Taylor and Francis Group, LLC.
Fil: Calcagno, Javier Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Curelovich, Jessica Natalia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernandez, Vanessa Maribel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Thatje, Sven. University of Southampton; Reino Unido
Fil: Lovrich, Gustavo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
description We present for the first time the vulnerability to disturbance of a bivalve assemblage situated in the middle intertidal zone of the Atlantic coast of the Southern South America (53°36′S, 67°58′W). This intertidal zone is characterized by a high level of sand movement preventing any establishment of sessile organisms on the vertical sides of rock outcrops. The coast is prone to potential spills from nearby hydrocarbon marine platforms, but this benthic assemblage has been poorly studied. In February 2001, we exposed the assemblage to two different experimental conditions: a complete removal of bivalves and a physical disturbance and tracked its recovery during the following 4 years. The disturbance lowered the diversity of associated fauna and made the sediment layer trapped among bivalves disappear, which was not restored. Mytilus chilensis was recruited into crevices or between byssi in the following settlement season, i.e. summer 2002. The recuperation of mussel coverage to predisturbance levels took 3 years after the total removal. In April 2004 the size frequency distributions, density and biomass/number ratio of M. chilensis were similar to those at the start of the experiment. Perumytilus purpuratus recovered more slowly than M. chilensis, probably due to its slower growth rate compared to M. chilensis and dependence on an adequate byssus matrix for settlement. The main apparent stressor was the irruption of sand, covering the bivalve assemblage for variable periods of time. This bivalve assemblage is characterized by low predatory pressure and therefore we hypothesize that it is predominantly controlled by competition for space. © 2012 Copyright Taylor and Francis Group, LLC.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/117066
Calcagno, Javier Ángel; Curelovich, Jessica Natalia; Fernandez, Vanessa Maribel; Thatje, Sven; Lovrich, Gustavo Alejandro; Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage; Taylor & Francis As; Marine Biology Research; 8; 10; 12-2012; 937-953
1745-1000
CONICET Digital
CONICET
url http://hdl.handle.net/11336/117066
identifier_str_mv Calcagno, Javier Ángel; Curelovich, Jessica Natalia; Fernandez, Vanessa Maribel; Thatje, Sven; Lovrich, Gustavo Alejandro; Effects of physical disturbance on a sub-Antarctic middle intertidal bivalve assemblage; Taylor & Francis As; Marine Biology Research; 8; 10; 12-2012; 937-953
1745-1000
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2012.702911
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis As
publisher.none.fl_str_mv Taylor & Francis As
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 12.822162

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