Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil

We analyzed the composition and spatial distribution of macrobenthos in the Cachoeira River estuary, Ilhéus, Bahia, Brazil. Samples were taken bimonthly from July 2008 to May 2009 at six stations along the estuary. In total, 613 individuals belonging to 71 taxa were collected. Molluscs showed the hi...

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Autores principales:	Ourives,Thailla M, Rizzo,Alexandra E, Boehs,Guisla
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2011
Materias:	Benthos ecology Brazilian northeast
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000100003
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spelling	oai:scielo:S0718-195720110001000032011-06-09Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, BrazilOurives,Thailla MRizzo,Alexandra EBoehs,Guisla Benthos ecology Brazilian northeast We analyzed the composition and spatial distribution of macrobenthos in the Cachoeira River estuary, Ilhéus, Bahia, Brazil. Samples were taken bimonthly from July 2008 to May 2009 at six stations along the estuary. In total, 613 individuals belonging to 71 taxa were collected. Molluscs showed the highest richness and abundance, followed by polychaetes. The spatial distribution of macrobenthos was influenced by salinity and by sediment characteristics. In the outer area microgastropods, the bivalve Donax gemmula, and the polychaete Drilonereis sp., were conspicuous. In the river mouth, the carnivorous gastropods Olivella minuta and Anachis obesa and the algal grazers Neritina virginea and Littorina ziczac predominated. In the middle estuary, there was a predominance of the polychaete Hemipodia californiensis. The euryhaline bivalves Tellina sp., Anomalocardia brasiliana, and Tagelus plebeius and the deposit-feeding polychaetes Heteromastus filiformis and Capitella cf. capitata were predominant in the inner estuary. Salinity, sediment characteristics, and dietary habits were important in the composition and distribution of organisms in this estuary.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.46 n.1 20112011-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000100003en10.4067/S0718-19572011000100003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Benthos ecology Brazilian northeast
spellingShingle	Benthos ecology Brazilian northeast Ourives,Thailla M Rizzo,Alexandra E Boehs,Guisla Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
description	We analyzed the composition and spatial distribution of macrobenthos in the Cachoeira River estuary, Ilhéus, Bahia, Brazil. Samples were taken bimonthly from July 2008 to May 2009 at six stations along the estuary. In total, 613 individuals belonging to 71 taxa were collected. Molluscs showed the highest richness and abundance, followed by polychaetes. The spatial distribution of macrobenthos was influenced by salinity and by sediment characteristics. In the outer area microgastropods, the bivalve Donax gemmula, and the polychaete Drilonereis sp., were conspicuous. In the river mouth, the carnivorous gastropods Olivella minuta and Anachis obesa and the algal grazers Neritina virginea and Littorina ziczac predominated. In the middle estuary, there was a predominance of the polychaete Hemipodia californiensis. The euryhaline bivalves Tellina sp., Anomalocardia brasiliana, and Tagelus plebeius and the deposit-feeding polychaetes Heteromastus filiformis and Capitella cf. capitata were predominant in the inner estuary. Salinity, sediment characteristics, and dietary habits were important in the composition and distribution of organisms in this estuary.
author	Ourives,Thailla M Rizzo,Alexandra E Boehs,Guisla
author_facet	Ourives,Thailla M Rizzo,Alexandra E Boehs,Guisla
author_sort	Ourives,Thailla M
title	Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
title_short	Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
title_full	Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
title_fullStr	Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
title_full_unstemmed	Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil
title_sort	composition and spatial distribution of the benthic macrofauna in the cachoeira river estuary, ilhéus, bahia, brazil
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000100003
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Composition and spatial distribution of the benthic macrofauna in the Cachoeira River estuary, Ilhéus, Bahia, Brazil

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