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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Lethal and sublethal effects of metal-polluted sediments on Chironomus sancticaroli Strixino and Strixino, 1981

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de Souza Beghelli, Frederico Guilherme [1] ; Cesar Lopez-Doval, Julio [2, 3] ; Henrique Rosa, Andre [1] ; Pompeo, Marcelo [1, 3] ; Moschini Carlos, Viviane [1]
Total Authors: 5
[1] UNESP, Programa Posgrad Ciencias Ambientais, Inst Ciencia & Tecnol Sorocaba, Ave Tres Marco 511, BR-18087180 Rio De Janeiro - Brazil
[2] Catalan Inst Water Res ICRA, Carrer Emili Grahit 101, Girona 17003 - Spain
[3] Univ Sao Paulo, Dept Ecol, Inst Biociencias, Rua Matao 321, Travessa 14, Cidade Univ, BR-05508090 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ECOTOXICOLOGY; v. 27, n. 3, p. 286-299, APR 2018.
Web of Science Citations: 1

The Cantareira Complex is one of the most important water supplies of the metropolitan region of So Paulo, Brazil. Previously, it was demonstrated that the sediments in this complex were polluted with metals and that Paiva Castro Reservoir-the last reservoir in the sequence, which receives water from the five previous reservoirs-was the reservoir with the greatest concentration of pollutants. Based on field data, it was noticed that copper concentrations in sediments were related to morphological alterations in chironomids. The present study provides novel monitoring methods and results for the complex by isolating the environmental and biological sources of variation. An adaptation of the in situ assay proposed by Soares et al. (Arch Environ Contam Toxicol 49:163-172, 2005), which uses a native tropical Chironomus species and low-cost materials, is also provided. The aim of this study was to isolate the effects of sediments from Paiva Castro on controlled populations of C. sancticaroli larvae using an in situ assay. A seven-day experiment was performed in triplicate. Third instar larvae were inoculated in chambers containing sediments from two distinct regions of Paiva Castro reservoir and a control site with sand. Five biological responses were considered: mouthpart alterations, larval length, width of cephalic capsule, mortality and total damage. The results suggest the effects of sediment toxicity on larvae include a reduction in length and a higher occurrence of total damage. (AU)

FAPESP's process: 12/11890-4 - Contamination for heavy metal in the sediment of reservoirs of the sistema Cantareira (São Paulo State): perspective or reality?
Grantee:Marcelo Luiz Martins Pompêo
Support type: Regular Research Grants
FAPESP's process: 13/08272-0 - Trophic descriptors of the reservoirs in the Cantareira systems (São Paulo, SP)
Grantee:Viviane Moschini Carlos
Support type: Regular Research Grants
FAPESP's process: 12/16420-6 - Ecotoxicological characterization of the Guarapiranga Reservoir: study of possible adverse effects of heavy metals, pesticides and environmental stressors on aquatic fauna
Grantee:Julio César López Doval
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/03494-4 - The reservoirs of the Cantareira System (Brazil, São Paulo): the relations between bioindicators benthic organisms and the heavy metals contamination
Grantee:Frederico Guilherme de Souza Beghelli
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/22581-8 - The European Union's Water Framework Directive: applications to Brazilian reservoirs reality
Grantee:Marcelo Luiz Martins Pompêo
Support type: Regular Research Grants