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Development of Ecotoxicity Bioassay Protocol for Whole Sediment Using Polychaeta: Armandia agilis

Grant number: 10/07605-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2010
Effective date (End): December 31, 2011
Field of knowledge:Engineering - Sanitary Engineering - Environmental Sanitation
Principal researcher:Denis Moledo de Souza Abessa
Grantee:Renan Vandre da Silva Toscano Saes
Home Institution: Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil


Since the industrial revolution in the XVIII century, the global production and consumption only increased, resulting in an increasing impact on ecosystems, especially on the coastal environment. The marine sediments are not only final repositories for different pollutants, but also a source of biota's contamination, and through the phenomena of bioaccumulation and biomagnification for human beings. Among the methods used in environmental assessments, the ecotoxicity test using sensitive organisms has been increasingly employed. However, few ecotoxicological test methods have been standardized with Brazilian species, being necessary to seek sensitive native species that can serve as test organisms in ecotoxicological assessments. Armandia agilis species has wide distribution along the Brazilian coast, besides it is easy to be caught and its gender has already been identified as a great environmental evaluator. Due to these characteristics, the replacement of Armandia agilis to Tiburonella viscana will be tested. The methods used to determining sensitivity by characteristics physical-chemical will be evaluated by test temperature, salinity and pH. Tests of grain size and organic matter will also be used to check the sensitivity of the polychaete. Controlled substances, such as potassium dichromate, zinc sulphate and detergent SDS will be evaluated with the aim of reaching protocol for these compounds. Finally the sensitivity of A. agilis will be compared to samples with known contamination and toxicity, so comparing the response of these data with those of the worm.

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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)
DA SILVA TOSCANO SAES, RENAN VANDRE; MOREIRA, LUCAS BURUAEM; PERES, TIAGO FARIAS; TANIGUCHI, SATIE; BICEGO, MARCIA CARUSO; MARINS, ROZANE VALENTE; DE SOUZA ABESSA, DENIS MOLEDO. Sub-lethal Responses of the Polychaete Armandia agilis in Whole-sediment Toxicity Testing. Bulletin of Environmental Contamination and Toxicology, v. 102, n. 3, p. 310-315, . (10/07605-7)

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