Foraminifera as indicators of marine pollutant contamination on the inner continental shelf of southern Brazil
| Autor: | Barun K. Sen Gupta, Beatriz Beck Eichler, André Rosch Rodrigues, Patrícia Pinheiro Beck Eichler |
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| Rok vydání: | 2012 |
| Předmět: |
Pollution
Geologic Sediments media_common.quotation_subject FORAMINIFERA Sewage Foraminifera Aquatic Science Oceanography Seawater media_common Pollutant geography geography.geographical_feature_category Bacteria biology Continental shelf business.industry Outfall Species diversity Estuary Biodiversity biology.organism_classification Environmental science business human activities Brazil Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2011.10.032 |
| Popis: | Analyses of living foraminiferal and environmental parameters near an outfall at Mar Grosso Beach (Laguna, SC, Brazil) demonstrate its usefulness as indicators of domestic sewage pollution. The low species diversity may be due to sand accumulation in the central part. Higher diversity was noted closer to the mouth of Laguna estuarine system where reduced salinity and higher temperatures indicate freshwater influence, suggesting a relationship between increased diversity and greater availability of terrestrial food. On the basis of foraminiferal diversity and average coliform count the higher values are closer to the mouth of the estuarine system and under the influence of the outfall. Due to the effect of local hydrodynamics, the particulate organic waste derived from the outfall does not settle down locally, and thus, do not accumulate nearby. Our hypothesis is that the fine material derived from the outfall is accumulating on the southwestern and northwestern parts of the beach. |
| Databáze: | OpenAIRE |
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