Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach

Autores
Kandratavicius, Noelia; Pastor, Catalina Teresa; Venturini, Natalia; Giménez, Luis; Rodriguez, Marcel; Muniz, Pablo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Organic enrichment, especially from anthropogenic sources, is one of the currentthreats to coastal marine biodiversity. Organic enrichment occurs mainly in sheltered soft bottoms,characterized by fine sediments, and results in multiple changes in the benthic habitat, includinghypoxia and an increased concentration of compounds that are toxic to marine invertebrates. Wereport on the results of a microcosm-based experiment (duration = 30 d), quantifying the effects oforganic enrichment on taxonomic and functional diversity of nematode assemblages from anopen/closed coastal lagoon of South America (Rocha Lagoon, Uruguay). In open/closed lagoons,the input of organic matter becomes a major disturbance due the limitation in water renewal. Inour experiment, enrichment led to reductions in abundance, richness and trophic diversity of thenematode assemblage. Rapid reductions in total abundance (after 4 d) were registered, while richnessdecreased only towards the end of the experiment (~30 d). Trophic changes were characterizedby loss of predators/omnivores and dominance of selective deposit-feeders and epigrowthfeeders.By contrast, we did not find any selective effect of enrichment associated with life historytraits (e.g. maturity index). Overall, these findings have 2 important implications for the conservationand monitoring of the health of coastal lagoons: first, monitoring of nematode assemblages atthe genus level is sufficient to detect enrichment effects; second, an index of trophic diversitywould be a good indicator of the effects of enrichment on natural communities.
Fil: Kandratavicius, Noelia. Universidad de la República de Uruguay; Uruguay
Fil: Pastor, Catalina Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentina
Fil: Venturini, Natalia. Universidad de la República de Uruguay; Uruguay
Fil: Giménez, Luis. Bangor University; Reino Unido
Fil: Rodriguez, Marcel. Universidad de la República de Uruguay; Uruguay
Fil: Muniz, Pablo. Universidad de la República de Uruguay; Uruguay
Materia
FREE-LIVING NEMATODES
SPIRULINA PLATENSIS
EUTROPHICATION ·
LAGUNA DE ROCHA
URUGUAY
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:11336/117331
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/117331
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network_name_str CONICET Digital (CONICET)
spelling Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approachKandratavicius, NoeliaPastor, Catalina TeresaVenturini, NataliaGiménez, LuisRodriguez, MarcelMuniz, PabloFREE-LIVING NEMATODESSPIRULINA PLATENSISEUTROPHICATION ·LAGUNA DE ROCHAURUGUAYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Organic enrichment, especially from anthropogenic sources, is one of the currentthreats to coastal marine biodiversity. Organic enrichment occurs mainly in sheltered soft bottoms,characterized by fine sediments, and results in multiple changes in the benthic habitat, includinghypoxia and an increased concentration of compounds that are toxic to marine invertebrates. Wereport on the results of a microcosm-based experiment (duration = 30 d), quantifying the effects oforganic enrichment on taxonomic and functional diversity of nematode assemblages from anopen/closed coastal lagoon of South America (Rocha Lagoon, Uruguay). In open/closed lagoons,the input of organic matter becomes a major disturbance due the limitation in water renewal. Inour experiment, enrichment led to reductions in abundance, richness and trophic diversity of thenematode assemblage. Rapid reductions in total abundance (after 4 d) were registered, while richnessdecreased only towards the end of the experiment (~30 d). Trophic changes were characterizedby loss of predators/omnivores and dominance of selective deposit-feeders and epigrowthfeeders.By contrast, we did not find any selective effect of enrichment associated with life historytraits (e.g. maturity index). Overall, these findings have 2 important implications for the conservationand monitoring of the health of coastal lagoons: first, monitoring of nematode assemblages atthe genus level is sufficient to detect enrichment effects; second, an index of trophic diversitywould be a good indicator of the effects of enrichment on natural communities.Fil: Kandratavicius, Noelia. Universidad de la República de Uruguay; UruguayFil: Pastor, Catalina Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; ArgentinaFil: Venturini, Natalia. Universidad de la República de Uruguay; UruguayFil: Giménez, Luis. Bangor University; Reino UnidoFil: Rodriguez, Marcel. Universidad de la República de Uruguay; UruguayFil: Muniz, Pablo. Universidad de la República de Uruguay; UruguayInter-Research2018-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/117331Kandratavicius, Noelia; Pastor, Catalina Teresa; Venturini, Natalia; Giménez, Luis; Rodriguez, Marcel; et al.; Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach; Inter-Research; Marine Ecology Progress Series; 602; 8-2018; 117-1330171-86301616-1599CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/meps/v602/p117-133/info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12699info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:24Zoai:ri.conicet.gov.ar:11336/117331instacron: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:34982025-09-03 09:55:25.317CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
title Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
spellingShingle Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
Kandratavicius, Noelia
FREE-LIVING NEMATODES
SPIRULINA PLATENSIS
EUTROPHICATION ·
LAGUNA DE ROCHA
URUGUAY
title_short Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
title_full Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
title_fullStr Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
title_full_unstemmed Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
title_sort Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach
dc.creator.none.fl_str_mv Kandratavicius, Noelia
Pastor, Catalina Teresa
Venturini, Natalia
Giménez, Luis
Rodriguez, Marcel
Muniz, Pablo
author Kandratavicius, Noelia
author_facet Kandratavicius, Noelia
Pastor, Catalina Teresa
Venturini, Natalia
Giménez, Luis
Rodriguez, Marcel
Muniz, Pablo
author_role author
author2 Pastor, Catalina Teresa
Venturini, Natalia
Giménez, Luis
Rodriguez, Marcel
Muniz, Pablo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv FREE-LIVING NEMATODES
SPIRULINA PLATENSIS
EUTROPHICATION ·
LAGUNA DE ROCHA
URUGUAY
topic FREE-LIVING NEMATODES
SPIRULINA PLATENSIS
EUTROPHICATION ·
LAGUNA DE ROCHA
URUGUAY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Organic enrichment, especially from anthropogenic sources, is one of the currentthreats to coastal marine biodiversity. Organic enrichment occurs mainly in sheltered soft bottoms,characterized by fine sediments, and results in multiple changes in the benthic habitat, includinghypoxia and an increased concentration of compounds that are toxic to marine invertebrates. Wereport on the results of a microcosm-based experiment (duration = 30 d), quantifying the effects oforganic enrichment on taxonomic and functional diversity of nematode assemblages from anopen/closed coastal lagoon of South America (Rocha Lagoon, Uruguay). In open/closed lagoons,the input of organic matter becomes a major disturbance due the limitation in water renewal. Inour experiment, enrichment led to reductions in abundance, richness and trophic diversity of thenematode assemblage. Rapid reductions in total abundance (after 4 d) were registered, while richnessdecreased only towards the end of the experiment (~30 d). Trophic changes were characterizedby loss of predators/omnivores and dominance of selective deposit-feeders and epigrowthfeeders.By contrast, we did not find any selective effect of enrichment associated with life historytraits (e.g. maturity index). Overall, these findings have 2 important implications for the conservationand monitoring of the health of coastal lagoons: first, monitoring of nematode assemblages atthe genus level is sufficient to detect enrichment effects; second, an index of trophic diversitywould be a good indicator of the effects of enrichment on natural communities.
Fil: Kandratavicius, Noelia. Universidad de la República de Uruguay; Uruguay
Fil: Pastor, Catalina Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentina
Fil: Venturini, Natalia. Universidad de la República de Uruguay; Uruguay
Fil: Giménez, Luis. Bangor University; Reino Unido
Fil: Rodriguez, Marcel. Universidad de la República de Uruguay; Uruguay
Fil: Muniz, Pablo. Universidad de la República de Uruguay; Uruguay
description Organic enrichment, especially from anthropogenic sources, is one of the currentthreats to coastal marine biodiversity. Organic enrichment occurs mainly in sheltered soft bottoms,characterized by fine sediments, and results in multiple changes in the benthic habitat, includinghypoxia and an increased concentration of compounds that are toxic to marine invertebrates. Wereport on the results of a microcosm-based experiment (duration = 30 d), quantifying the effects oforganic enrichment on taxonomic and functional diversity of nematode assemblages from anopen/closed coastal lagoon of South America (Rocha Lagoon, Uruguay). In open/closed lagoons,the input of organic matter becomes a major disturbance due the limitation in water renewal. Inour experiment, enrichment led to reductions in abundance, richness and trophic diversity of thenematode assemblage. Rapid reductions in total abundance (after 4 d) were registered, while richnessdecreased only towards the end of the experiment (~30 d). Trophic changes were characterizedby loss of predators/omnivores and dominance of selective deposit-feeders and epigrowthfeeders.By contrast, we did not find any selective effect of enrichment associated with life historytraits (e.g. maturity index). Overall, these findings have 2 important implications for the conservationand monitoring of the health of coastal lagoons: first, monitoring of nematode assemblages atthe genus level is sufficient to detect enrichment effects; second, an index of trophic diversitywould be a good indicator of the effects of enrichment on natural communities.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
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/11336/117331
Kandratavicius, Noelia; Pastor, Catalina Teresa; Venturini, Natalia; Giménez, Luis; Rodriguez, Marcel; et al.; Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach; Inter-Research; Marine Ecology Progress Series; 602; 8-2018; 117-133
0171-8630
1616-1599
CONICET Digital
CONICET
url http://hdl.handle.net/11336/117331
identifier_str_mv Kandratavicius, Noelia; Pastor, Catalina Teresa; Venturini, Natalia; Giménez, Luis; Rodriguez, Marcel; et al.; Response of estuarine free-living nematode assemblages to organic enrichment: an experimental approach; Inter-Research; Marine Ecology Progress Series; 602; 8-2018; 117-133
0171-8630
1616-1599
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/meps/v602/p117-133/
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps12699
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
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 13.13397

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