Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina

The aim of this study is to characterize the different macrozoobenthos communities in Mar del Plata waters (south-western Atlantic) on the basis of their abundance and habitat, and to determine how sediment characteristics, like the grain-size composition, affect macrobenthic community structure. Mu...

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Detalles Bibliográficos
Autores principales: Arrighetti, F., Penchaszadeh, P.E.
Formato: JOUR
Materias:
grain size composition
macrobenthos
patchy distribution
south-western Atlantic
abundance
bivalve
community structure
echinoderm
grain size
multivariate analysis
patchiness
polychaete
trawling
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Mar del Plata
Amphipoda
Armandia loboi
Bacescapseudes
Bivalvia
Crassinella
Diplodonta
Echinodermata
Encope emarginata
Nephtyidae
Ostracoda
Polychaeta
Scolelepis
Tanaidacea
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00253154_v90_n5_p933_Arrighetti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00253154_v90_n5_p933_Arrighetti
record_format dspace
spelling todo:paper_00253154_v90_n5_p933_Arrighetti2023-10-03T14:35:44Z Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina Arrighetti, F. Penchaszadeh, P.E. grain size composition macrobenthos patchy distribution south-western Atlantic abundance bivalve community structure echinoderm grain size macrobenthos multivariate analysis patchiness polychaete trawling Argentina Atlantic Ocean Atlantic Ocean (Southwest) Buenos Aires [Argentina] Mar del Plata Amphipoda Armandia loboi Bacescapseudes Bivalvia Crassinella Diplodonta Echinodermata Encope emarginata Nephtyidae Ostracoda Polychaeta Scolelepis Tanaidacea The aim of this study is to characterize the different macrozoobenthos communities in Mar del Plata waters (south-western Atlantic) on the basis of their abundance and habitat, and to determine how sediment characteristics, like the grain-size composition, affect macrobenthic community structure. Multivariate techniques indicated that benthic communities and sediments in the surveyed area were included into the following five well-defined groups: (1) a medium sand assemblage dominated by the bivalve Crassinella marplatensis and Diplodonta patagonica, the echinoderm Encope emarginata, the tanaidacean Bacescapseudes sp. and the polychaete Armandia loboi; (2) a medium to very fine sand assemblage dominated by ostracods, the tanaidacean Bacescapseudes sp., amphipods and polychaetes of the family Nephtyidae; (3) a fine to very fine sand assemblage dominated by the tanaidacean Bacescapseudes sp.; (4) a silt and fine sand assemblage dominated by polychaetes particularly Scolelepis sp. and individuals of the family Nephtyidae; and (5) a fine sand assemblage dominated by amphipods and the tanaidacean Bacescapseudes sp. These results revealed the patchy distribution of macrobenthic assemblages as a result of sediment characteristics and serve as baseline information for this area strongly subjected to trawling perturbations. © 2010 Marine Biological Association of the United Kingdom. Fil:Arrighetti, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00253154_v90_n5_p933_Arrighetti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic grain size composition
macrobenthos
patchy distribution
south-western Atlantic
abundance
bivalve
community structure
echinoderm
grain size
macrobenthos
multivariate analysis
patchiness
polychaete
trawling
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Mar del Plata
Amphipoda
Armandia loboi
Bacescapseudes
Bivalvia
Crassinella
Diplodonta
Echinodermata
Encope emarginata
Nephtyidae
Ostracoda
Polychaeta
Scolelepis
Tanaidacea
spellingShingle grain size composition
macrobenthos
patchy distribution
south-western Atlantic
abundance
bivalve
community structure
echinoderm
grain size
macrobenthos
multivariate analysis
patchiness
polychaete
trawling
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Mar del Plata
Amphipoda
Armandia loboi
Bacescapseudes
Bivalvia
Crassinella
Diplodonta
Echinodermata
Encope emarginata
Nephtyidae
Ostracoda
Polychaeta
Scolelepis
Tanaidacea
Arrighetti, F.
Penchaszadeh, P.E.
Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
topic_facet grain size composition
macrobenthos
patchy distribution
south-western Atlantic
abundance
bivalve
community structure
echinoderm
grain size
macrobenthos
multivariate analysis
patchiness
polychaete
trawling
Argentina
Atlantic Ocean
Atlantic Ocean (Southwest)
Buenos Aires [Argentina]
Mar del Plata
Amphipoda
Armandia loboi
Bacescapseudes
Bivalvia
Crassinella
Diplodonta
Echinodermata
Encope emarginata
Nephtyidae
Ostracoda
Polychaeta
Scolelepis
Tanaidacea
description The aim of this study is to characterize the different macrozoobenthos communities in Mar del Plata waters (south-western Atlantic) on the basis of their abundance and habitat, and to determine how sediment characteristics, like the grain-size composition, affect macrobenthic community structure. Multivariate techniques indicated that benthic communities and sediments in the surveyed area were included into the following five well-defined groups: (1) a medium sand assemblage dominated by the bivalve Crassinella marplatensis and Diplodonta patagonica, the echinoderm Encope emarginata, the tanaidacean Bacescapseudes sp. and the polychaete Armandia loboi; (2) a medium to very fine sand assemblage dominated by ostracods, the tanaidacean Bacescapseudes sp., amphipods and polychaetes of the family Nephtyidae; (3) a fine to very fine sand assemblage dominated by the tanaidacean Bacescapseudes sp.; (4) a silt and fine sand assemblage dominated by polychaetes particularly Scolelepis sp. and individuals of the family Nephtyidae; and (5) a fine sand assemblage dominated by amphipods and the tanaidacean Bacescapseudes sp. These results revealed the patchy distribution of macrobenthic assemblages as a result of sediment characteristics and serve as baseline information for this area strongly subjected to trawling perturbations. © 2010 Marine Biological Association of the United Kingdom.
format JOUR
author Arrighetti, F.
Penchaszadeh, P.E.
author_facet Arrighetti, F.
Penchaszadeh, P.E.
author_sort Arrighetti, F.
title Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
title_short Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
title_full Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
title_fullStr Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
title_full_unstemmed Macrobenthos-sediment relationships in a sandy bottom community off Mar del Plata, Argentina
title_sort macrobenthos-sediment relationships in a sandy bottom community off mar del plata, argentina
url http://hdl.handle.net/20.500.12110/paper_00253154_v90_n5_p933_Arrighetti
work_keys_str_mv AT arrighettif macrobenthossedimentrelationshipsinasandybottomcommunityoffmardelplataargentina
AT penchaszadehpe macrobenthossedimentrelationshipsinasandybottomcommunityoffmardelplataargentina
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