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Quality study of natural sediments from the mouth of the Ribeira de Iguape river (APA marinha Litoral Sul, SP), based in ecotoxicological tests

Grant number: 12/03939-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2012
Effective date (End): December 31, 2013
Field of knowledge:Engineering - Sanitary Engineering - Environmental Sanitation
Principal researcher:Denis Moledo de Souza Abessa
Grantee:Bruno Galvão de Campos
Home Institution: Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil


The Environmental Protection Areas (EPA) born to promote the conservation of the environment as well as improving the living conditions of the population in a sustainable manner. The coast of São Paulo has an almost continuous mosaic of conservation units and can be deployed to the South coast marine APA (APAMLC) and Environmental Protection Area of Cananéia, Iguape and Peruíbe (APA CIP). The mouth of the Rio Ribeira de Iguape is into the interface of these protected areas, being close to the APA Long Island, southeast, and the Juréia-Itatins north. Its recognized the history of metal contamination in the Rio Ribeira de Iguape due to disposal of waste from the exploration of lead, as well as the transport of contaminants to the coastal region, where there is deposition of contaminants on sediments, which turn can cause toxicity to benthic organisms and cause ecological risks to lives. So, the objective of this study is to evaluate the sediment quality in the region of the mouth of the river's natural Ribeira de Iguape through sedimentological analyzes and ecotoxicity tests full of sediment. Will be used for such organisms sensitive to contaminants. In an acute toxicity test is used amphipod Tiburonella viscana excavator, for testing the chronic copepod benthic Tisbe biminiensis, both conducted in accordance with international protocols. If it is evident toxicity in the samples is evaluated with respect to its particle size and concentration of organic carbon, since preliminary data indicate that the metal entering the system from particulates. The results of this project should provide information on the influence of activities upstream of the river, on the environmental quality of different UC, assisting in the management of these units and the development of policies aimed at environmental conservation. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CAMPOS, B. G.; CRUZ, A. C. F.; BURUAEM, L. M.; RODRIGUES, A. P. C.; MACHADO, W. T. V.; ABESSA, D. M. S.. Using a tiered approach based on ecotoxicological techniques to assess the ecological risks of contamination in a subtropical estuarine protected area. Science of The Total Environment, v. 544, p. 564-573, . (12/03939-3, 13/15482-0)
ABESSA, DENIS M. S.; ALBUQUERQUE, HEITOR C.; MORAIS, LUCAS G.; ARAUJO, GIULIANA S.; FONSECA, TAINA G.; CRUZ, ANA C. F.; CAMPOS, BRUNO G.; CAMARGO, JULIA B. D. A.; GUSSO-CHOUERI, PALOMA K.; PERINA, FERNANDO C.; et al. Pollution status of marine protected areas worldwide and the consequent toxic effects are unknown. Environmental Pollution, v. 243, n. B, p. 1450-1459, . (11/02682-6, 13/15482-0, 12/03939-3, 15/14652-5, 11/20745-5)

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