Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

This study describes the macrofaunal assemblages of subtidal rocky reefs off Mar del Plata in order to compare the macro invertebrate assemblages settled on shipwrecks with those of nearby reef sand to characterize the fish fauna associated with natural (NR) and artificial (AR) reefs. Topographic ch...

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Autores principales:	Genzano,Gabriel, Giberto,Diego, Bremec,Claudia
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2011
Materias:	natural and artificial reefs benthic communities Mar del Plata southwestern Atlantic
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000300015
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spelling	oai:scielo:S0718-560X20110003000152014-11-05Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern AtlanticGenzano,GabrielGiberto,DiegoBremec,Claudia natural and artificial reefs benthic communities Mar del Plata southwestern Atlantic This study describes the macrofaunal assemblages of subtidal rocky reefs off Mar del Plata in order to compare the macro invertebrate assemblages settled on shipwrecks with those of nearby reef sand to characterize the fish fauna associated with natural (NR) and artificial (AR) reefs. Topographic characterizations and surveys of invertebrates and fishes were performed in November and December 2005, using SCUBA diving. A non-parametric multivariate analysis was used to analyze the environmental and biological data. The reefs were mainly distinguished by their depth and the position of the substrate. The red calcareous algae, Corallina officinalis, dominated the shallowest NR, whereas conspicuous mytilid assemblages of Mytilus platensis were present at depths over 3 m, sea anemones, Anthothoe chilensis, were more abundant between 6 and 10 m, and the soft coral, Tripalea clavaria, was found at nearly 20 m depth. No differences were found between horizontal ARs and the adjacent NRs. The greatest differences were found between the communities of vertical and horizontal substrates, both in NRs and ARs. Fifteen fish species were recorded in the analyzed area. Species having strong site fidelity, e.g., Acanthistius brasilianus and Pseudopercis semifasciata, were clearly more abundant and/or frequent in ARs (shipwrecks) than in NRs. This pioneer study in the surveyed area showed that reef sallow the settlement of diverse benthic assemblages. ARs also provide refuge for fishes. As sport fishing and diving are activities being carried out in Mar del Plata, where tourism is one of the main economic resources, the protection of such areas should be considered in conservation plans.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.39 n.3 20112011-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000300015en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	natural and artificial reefs benthic communities Mar del Plata southwestern Atlantic
spellingShingle	natural and artificial reefs benthic communities Mar del Plata southwestern Atlantic Genzano,Gabriel Giberto,Diego Bremec,Claudia Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
description	This study describes the macrofaunal assemblages of subtidal rocky reefs off Mar del Plata in order to compare the macro invertebrate assemblages settled on shipwrecks with those of nearby reef sand to characterize the fish fauna associated with natural (NR) and artificial (AR) reefs. Topographic characterizations and surveys of invertebrates and fishes were performed in November and December 2005, using SCUBA diving. A non-parametric multivariate analysis was used to analyze the environmental and biological data. The reefs were mainly distinguished by their depth and the position of the substrate. The red calcareous algae, Corallina officinalis, dominated the shallowest NR, whereas conspicuous mytilid assemblages of Mytilus platensis were present at depths over 3 m, sea anemones, Anthothoe chilensis, were more abundant between 6 and 10 m, and the soft coral, Tripalea clavaria, was found at nearly 20 m depth. No differences were found between horizontal ARs and the adjacent NRs. The greatest differences were found between the communities of vertical and horizontal substrates, both in NRs and ARs. Fifteen fish species were recorded in the analyzed area. Species having strong site fidelity, e.g., Acanthistius brasilianus and Pseudopercis semifasciata, were clearly more abundant and/or frequent in ARs (shipwrecks) than in NRs. This pioneer study in the surveyed area showed that reef sallow the settlement of diverse benthic assemblages. ARs also provide refuge for fishes. As sport fishing and diving are activities being carried out in Mar del Plata, where tourism is one of the main economic resources, the protection of such areas should be considered in conservation plans.
author	Genzano,Gabriel Giberto,Diego Bremec,Claudia
author_facet	Genzano,Gabriel Giberto,Diego Bremec,Claudia
author_sort	Genzano,Gabriel
title	Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
title_short	Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
title_full	Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
title_fullStr	Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
title_full_unstemmed	Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic
title_sort	benthic survey of natural and artificial reefs off mar del plata, argentina, southwestern atlantic
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000300015
work_keys_str_mv	AT genzanogabriel benthicsurveyofnaturalandartificialreefsoffmardelplataargentinasouthwesternatlantic AT gibertodiego benthicsurveyofnaturalandartificialreefsoffmardelplataargentinasouthwesternatlantic AT bremecclaudia benthicsurveyofnaturalandartificialreefsoffmardelplataargentinasouthwesternatlantic
_version_	1714205084603121664

Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

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