Chironomus sancticaroli (Diptera, Chironomidae) as a Sensitive Test Species: Can We Rely on Its Use After Repeated Generations, Under Laboratory Conditions?

Author(s)

Corbi, Juliano J. ^[1] ; Bernegossi, Aline C. ^[1] ; Moura, Lidia ^[1] ; Felipe, Mayara C. ^[1] ; Issa, Carina G. ^[1] ; Silva, Mara Rubia L. ^[1] ; Gorni, Guilherme R. ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Hidraul & Saneamento, EESC, CP 359, BR-13566590 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: Bulletin of Environmental Contamination and Toxicology; v. 103, n. 2, p. 213-217, AUG 2019.
• Web of Science Citations: 0

Abstract

In ecotoxicological assays, previously selected and standardized organism tests are exposed to an environmental sample. Some species of the Chironomus genus have been extensively used in ecotoxicological assays. Among these, Chironomus tentans is usually utilized in the USA and Chironomus sancticaroli in Brazil. We conducted ecotoxicological bioassays to compare a population of C. sancticaroli, kept for 6years under laboratory conditions, with a sylvatic population of the same species, collected in the field. The aim was to test the hypothesis that populations of C. sancticaroli, maintained in the laboratory for long periods, could have a different response to stressors/substances. We analyzed the responses of C. sancticaroli for potassium chloride, zinc chloride, potassium dichromate, linear alkylbenzene sulphonate (LAS) and caffeine. The results showed no significant differences between the two populations in the analyses and seems to indicate the possible use of C. sancticaroli from populations kept in the laboratory for long periods. (AU)

• FAPESP's process: 16/21946-8 - Study of metal complexation by amino acids imobilized in bacterial cellulose membranes in streams contaminated by sugar cane cultivation: effects on the larvae of Chironomus sancticaroli
• Grantee: Juliano José Corbi
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants