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

Autor(es)

Felipe, Mayara Caroline ^[1] ; Bernegossi, Aline Christine ^[1] ; Cardoso-Silva, Bruna Nayara ^[1] ; Dell'Acqua, Marcelo Marques ^[1] ; Corbi, Juliano Jose ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sao Carlos Sch Engn EESC, Dept Hydraul & Sanitat SHS, Aquat Ecol Lab, CP 359, BR-13566590 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Environmental Science and Pollution Research; v. 28, n. 29, p. 39282-39295, AUG 2021.
• Citações Web of Science: 1

Resumo

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 17 alpha-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. (AU)

• Processo FAPESP: 16/24622-9 - Estudo da frequência do batimento das asas do mosquito Aedes aegypti utilizando sensores inteligentes: simulação de diferentes condições ambientais em laboratório
• Beneficiário: Barbara Lepretti de Nadai
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/06246-7 - Aplicação do conceito de biorrefinaria a estações de tratamento biológico de águas residuárias: o controle da poluição ambiental aliado à recuperação de matéria e energia
• Beneficiário: Marcelo Zaiat
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/21901-0 - Avaliação do impacto ambiental de vinhaça biodigerida em reator anaeróbio utilizando testes ecotoxicológicos
• Beneficiário: Mayara Caroline Felipe
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado