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dc.creatorELÍAS,RODOLFO
dc.creatorBREMEC,CLAUDIA S
dc.creatorVALLARINO,EDUARDO A.
dc.date2001-09-01
dc.date.accessioned2020-02-17T15:27:30Z
dc.date.available2020-02-17T15:27:30Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000300003
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/127402
dc.descriptionA 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
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dc.languageen
dc.publisherSociedad de Biología de Chile
dc.relation10.4067/S0716-078X2001000300003
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista chilena de historia natural v.74 n.3 2001
dc.subjectpolychaetes
dc.subjectdomestic outfall
dc.subjectsandy subtidal bottoms
dc.subjectSouth Atlantic
dc.titlePolychaetes from a southwestern shallow shelf Atlantic area (Argentina, 38 S) affected by sewage discharge


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