Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)

Autores
Rico, Alicia E.; Peralta, Roxana Beatriz; López Gappa, Juan José
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Subtidal fouling assemblages usually consist of short-lived organisms. Colonisation sequences on man-made structures may thus be greatly affected by the temporal and spatial variability of propagule supply. This study explores the influence of seasonality on succession in the macrofouling assemblage of a Patagonian harbour (Argentina, Southwest Atlantic). Replicated artificial substrata were suspended horizontally and sampled at quarterly intervals during 1 year. The influence of seasonality on 1-year-old assemblages was further analysed using additional sets of replicated panels submersed at different seasons and collected 1 year later. Upper surfaces were always dominated by ephemeral algae, while lower surfaces exhibited high coverage of filter-feeding invertebrates. Regardless of submersion length, species richness was significantly higher on lower than on upper surfaces. A significant interaction between orientation and submersion length was found for the Shannon diversity index, meaning that temporal changes in diversity depended on substratum orientation. On the lower surfaces, diversity reached a maximum after 9 months and then declined, mainly due to extensive dislodgment of two species of ascidians. On algal-dominated upper surfaces, differences in structure of annual assemblages were due to seasonal changes in the abundance of ephemeral algae. This study shows that constancy or variability of 1-year-old assemblages whose development began at different seasons depended greatly on the life history of the organisms that settled and managed to persist on both surfaces, which in turn depended on substratum orientation.
Fil: Rico, Alicia E.. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Peralta, Roxana Beatriz. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: López Gappa, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Materia
ARGENTINA
HARBOUR
MACROFOULING
PATAGONIA
SEASONALITY
SUCCESSION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/97650
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)Rico, Alicia E.Peralta, Roxana BeatrizLópez Gappa, Juan JoséARGENTINAHARBOURMACROFOULINGPATAGONIASEASONALITYSUCCESSIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Subtidal fouling assemblages usually consist of short-lived organisms. Colonisation sequences on man-made structures may thus be greatly affected by the temporal and spatial variability of propagule supply. This study explores the influence of seasonality on succession in the macrofouling assemblage of a Patagonian harbour (Argentina, Southwest Atlantic). Replicated artificial substrata were suspended horizontally and sampled at quarterly intervals during 1 year. The influence of seasonality on 1-year-old assemblages was further analysed using additional sets of replicated panels submersed at different seasons and collected 1 year later. Upper surfaces were always dominated by ephemeral algae, while lower surfaces exhibited high coverage of filter-feeding invertebrates. Regardless of submersion length, species richness was significantly higher on lower than on upper surfaces. A significant interaction between orientation and submersion length was found for the Shannon diversity index, meaning that temporal changes in diversity depended on substratum orientation. On the lower surfaces, diversity reached a maximum after 9 months and then declined, mainly due to extensive dislodgment of two species of ascidians. On algal-dominated upper surfaces, differences in structure of annual assemblages were due to seasonal changes in the abundance of ephemeral algae. This study shows that constancy or variability of 1-year-old assemblages whose development began at different seasons depended greatly on the life history of the organisms that settled and managed to persist on both surfaces, which in turn depended on substratum orientation.Fil: Rico, Alicia E.. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Peralta, Roxana Beatriz. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: López Gappa, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaSpringer2012-12info: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/11336/97650Rico, Alicia E.; Peralta, Roxana Beatriz; López Gappa, Juan José; Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic); Springer; Helgoland Marine Research; 66; 4; 12-2012; 577-5841438-387XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10152-012-0293-4info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10152-012-0293-4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:45:04Zoai:ri.conicet.gov.ar:11336/97650instacron: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 11:45:05.545CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
title Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
spellingShingle Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
Rico, Alicia E.
ARGENTINA
HARBOUR
MACROFOULING
PATAGONIA
SEASONALITY
SUCCESSION
title_short Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
title_full Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
title_fullStr Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
title_full_unstemmed Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
title_sort Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic)
dc.creator.none.fl_str_mv Rico, Alicia E.
Peralta, Roxana Beatriz
López Gappa, Juan José
author Rico, Alicia E.
author_facet Rico, Alicia E.
Peralta, Roxana Beatriz
López Gappa, Juan José
author_role author
author2 Peralta, Roxana Beatriz
López Gappa, Juan José
author2_role author
author
dc.subject.none.fl_str_mv ARGENTINA
HARBOUR
MACROFOULING
PATAGONIA
SEASONALITY
SUCCESSION
topic ARGENTINA
HARBOUR
MACROFOULING
PATAGONIA
SEASONALITY
SUCCESSION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Subtidal fouling assemblages usually consist of short-lived organisms. Colonisation sequences on man-made structures may thus be greatly affected by the temporal and spatial variability of propagule supply. This study explores the influence of seasonality on succession in the macrofouling assemblage of a Patagonian harbour (Argentina, Southwest Atlantic). Replicated artificial substrata were suspended horizontally and sampled at quarterly intervals during 1 year. The influence of seasonality on 1-year-old assemblages was further analysed using additional sets of replicated panels submersed at different seasons and collected 1 year later. Upper surfaces were always dominated by ephemeral algae, while lower surfaces exhibited high coverage of filter-feeding invertebrates. Regardless of submersion length, species richness was significantly higher on lower than on upper surfaces. A significant interaction between orientation and submersion length was found for the Shannon diversity index, meaning that temporal changes in diversity depended on substratum orientation. On the lower surfaces, diversity reached a maximum after 9 months and then declined, mainly due to extensive dislodgment of two species of ascidians. On algal-dominated upper surfaces, differences in structure of annual assemblages were due to seasonal changes in the abundance of ephemeral algae. This study shows that constancy or variability of 1-year-old assemblages whose development began at different seasons depended greatly on the life history of the organisms that settled and managed to persist on both surfaces, which in turn depended on substratum orientation.
Fil: Rico, Alicia E.. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Peralta, Roxana Beatriz. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: López Gappa, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
description Subtidal fouling assemblages usually consist of short-lived organisms. Colonisation sequences on man-made structures may thus be greatly affected by the temporal and spatial variability of propagule supply. This study explores the influence of seasonality on succession in the macrofouling assemblage of a Patagonian harbour (Argentina, Southwest Atlantic). Replicated artificial substrata were suspended horizontally and sampled at quarterly intervals during 1 year. The influence of seasonality on 1-year-old assemblages was further analysed using additional sets of replicated panels submersed at different seasons and collected 1 year later. Upper surfaces were always dominated by ephemeral algae, while lower surfaces exhibited high coverage of filter-feeding invertebrates. Regardless of submersion length, species richness was significantly higher on lower than on upper surfaces. A significant interaction between orientation and submersion length was found for the Shannon diversity index, meaning that temporal changes in diversity depended on substratum orientation. On the lower surfaces, diversity reached a maximum after 9 months and then declined, mainly due to extensive dislodgment of two species of ascidians. On algal-dominated upper surfaces, differences in structure of annual assemblages were due to seasonal changes in the abundance of ephemeral algae. This study shows that constancy or variability of 1-year-old assemblages whose development began at different seasons depended greatly on the life history of the organisms that settled and managed to persist on both surfaces, which in turn depended on substratum orientation.
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/11336/97650
Rico, Alicia E.; Peralta, Roxana Beatriz; López Gappa, Juan José; Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic); Springer; Helgoland Marine Research; 66; 4; 12-2012; 577-584
1438-387X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97650
identifier_str_mv Rico, Alicia E.; Peralta, Roxana Beatriz; López Gappa, Juan José; Succession in subtidal macrofouling assemblages of a Patagonian harbour (Argentina, SW Atlantic); Springer; Helgoland Marine Research; 66; 4; 12-2012; 577-584
1438-387X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10152-012-0293-4
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10152-012-0293-4
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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