Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge

A benthos-sampling program was carried out in the coastal area of Mar del Plata city in order to know the composition and distribution of infaunal polychaetes living on a subtidal soft-bottom substrate affected by the sewage discharge. Sandy bottoms showed heterogeneous sediment composition and very...

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Autores principales:	ELÍAS,RODOLFO, BREMEC,CLAUDIA S, VALLARINO,EDUARDO A.
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2001
Materias:	polychaetes domestic outfall sandy subtidal bottoms South Atlantic
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000300003
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spelling	oai:scielo:S0716-078X20010003000032002-06-13Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage dischargeELÍAS,RODOLFOBREMEC,CLAUDIA SVALLARINO,EDUARDO A. polychaetes domestic outfall sandy subtidal bottoms South Atlantic A benthos-sampling program was carried out in the coastal area of Mar del Plata city in order to know the composition and distribution of infaunal polychaetes living on a subtidal soft-bottom substrate affected by the sewage discharge. Sandy bottoms showed heterogeneous sediment composition and very low organic matter content. Thirty three polychaete species were identified in a range depth between 6.5 to 12.5 m. A comparison with data from 30 years ago from adjacent areas deeper than 12 m is herein presented. Polychaete distribution was related both to the type of sediment and to the content of organic matter. Owenia fusiformis Delle Chiaje was dominant and peaked at stations near the sewage effluent. Small-sized polychaetes were abundant in the sampling area. A possible explanation to the faunal composition of sites near sewage effluents is that hydrodynamic forces frequently disturb the area, and benthic fauna is permanently in an early stage of development. The effect of sewage appeared to be restricted to the shallower subtidal area around the outfallinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.74 n.3 20012001-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000300003en10.4067/S0716-078X2001000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	polychaetes domestic outfall sandy subtidal bottoms South Atlantic
spellingShingle	polychaetes domestic outfall sandy subtidal bottoms South Atlantic ELÍAS,RODOLFO BREMEC,CLAUDIA S VALLARINO,EDUARDO A. Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
description	A benthos-sampling program was carried out in the coastal area of Mar del Plata city in order to know the composition and distribution of infaunal polychaetes living on a subtidal soft-bottom substrate affected by the sewage discharge. Sandy bottoms showed heterogeneous sediment composition and very low organic matter content. Thirty three polychaete species were identified in a range depth between 6.5 to 12.5 m. A comparison with data from 30 years ago from adjacent areas deeper than 12 m is herein presented. Polychaete distribution was related both to the type of sediment and to the content of organic matter. Owenia fusiformis Delle Chiaje was dominant and peaked at stations near the sewage effluent. Small-sized polychaetes were abundant in the sampling area. A possible explanation to the faunal composition of sites near sewage effluents is that hydrodynamic forces frequently disturb the area, and benthic fauna is permanently in an early stage of development. The effect of sewage appeared to be restricted to the shallower subtidal area around the outfall
author	ELÍAS,RODOLFO BREMEC,CLAUDIA S VALLARINO,EDUARDO A.
author_facet	ELÍAS,RODOLFO BREMEC,CLAUDIA S VALLARINO,EDUARDO A.
author_sort	ELÍAS,RODOLFO
title	Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
title_short	Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
title_full	Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
title_fullStr	Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
title_full_unstemmed	Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge
title_sort	polychaetes from a southwestern shallow shelf atlantic area (argentina, 38 s) affected by sewage discharge
publisher	Sociedad de Biología de Chile
publishDate	2001
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000300003
work_keys_str_mv	AT eliasrodolfo polychaetesfromasouthwesternshallowshelfatlanticareaargentina38saffectedbysewagedischarge AT bremecclaudias polychaetesfromasouthwesternshallowshelfatlanticareaargentina38saffectedbysewagedischarge AT vallarinoeduardoa polychaetesfromasouthwesternshallowshelfatlanticareaargentina38saffectedbysewagedischarge
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Polychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge

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