Chironomus sancticaroli generation test applied to chemical contaminants and freshwater sediment samples.

Autor: Felipe MC; Aquatic Ecology Laboratory, Department of Hydraulic and Sanitation (SHS), São Carlos School of Engineering (EESC), University of Sao Paulo-USP, C.P. 359, São Carlos, SP, CEP 13566-590, Brazil. mayarafelipe@usp.br., Bernegossi AC; Aquatic Ecology Laboratory, Department of Hydraulic and Sanitation (SHS), São Carlos School of Engineering (EESC), University of Sao Paulo-USP, C.P. 359, São Carlos, SP, CEP 13566-590, Brazil., Cardoso-Silva BN; Aquatic Ecology Laboratory, Department of Hydraulic and Sanitation (SHS), São Carlos School of Engineering (EESC), University of Sao Paulo-USP, C.P. 359, São Carlos, SP, CEP 13566-590, Brazil., Dell'Acqua MM; Aquatic Ecology Laboratory, Department of Hydraulic and Sanitation (SHS), São Carlos School of Engineering (EESC), University of Sao Paulo-USP, C.P. 359, São Carlos, SP, CEP 13566-590, Brazil., Corbi JJ; Aquatic Ecology Laboratory, Department of Hydraulic and Sanitation (SHS), São Carlos School of Engineering (EESC), University of Sao Paulo-USP, C.P. 359, São Carlos, SP, CEP 13566-590, Brazil.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2021 Aug; Vol. 28 (29), pp. 39282-39295. Date of Electronic Publication: 2021 Mar 23.
DOI: 10.1007/s11356-021-13250-9
Abstrakt: The use of ecotoxicological bioassays has been increasing due to the importance of understanding the effects of substances on biota and to help environmental agencies determine water and sediment qualities. The use of Chironomus sp. in laboratory bioassays is extensive, but there is still a lack of studies regarding the application of extended ecotoxicological tests, which evaluate different population generation responses and show a detailed impact on their development. The present study investigated the response of Chironomus sancticaroli, a Brazilian endemic insect, to 17α-ethinylestradiol hormone, caffeine anhydrous, LAS (linear alkylbenzene sulfonate), and environmental samples (sediments) in relation to wing length, fecundity, and larval length over three generations. Statistically, differences for all contaminants between P (parental), F1, and F2 generations (p ≤ 0.05) were observed, indicating that in the environment, the organism may be negatively affected when exposed to contaminants in successive generations. Different ecological responses were also noted in comparison to classic acute (96h) and chronic (10 days) ecotoxicological tests using Chironomus sancticaroli. Our results highlight that the generation test can present more detailed results regarding the effects of stressors on the organism's life cycle than do the classic bioassays.
(© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE