Details

Autor(en) / Beteiligte

• Almeida, Éryka Costa
• Passos, Larissa Souza
• Vieira, Carlos Eduardo Delfino
• Acayaba, Raphael Danna
• Montagner, Cassiana Carolina
• Pinto, Ernani
• Martinez, Claudia Bueno dos Reis
• Fonseca, Ana Lúcia

Titel

Can the insecticide Imidacloprid affect the health of the Neotropical freshwater fish Astyanax altiparanae (Teleostei: Characidae)?

Ist Teil von

• Environmental toxicology and pharmacology, 2021-07, Vol.85, p.103634, Article 103634

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •Imidacloprid (IMI) acute effects were evaluated on the fish Astyanax altiparanae.•IMI promoted oxidative damage to lipids in the fish gills and muscle.•IMI caused neurotoxic effects in the fish muscle.•IMI increased erythrocyte nuclear abnormalities frequency in the exposed fish.•Muscle, gills, and blood were the most affected fish tissues by IMI exposure. Female juveniles of the Neotropical fish Astyanax altiparanae were exposed for 96 h to four treatments containing the active ingredient from Imidacloprid® commercial formulation (IMI 1, IMI 2, IMI 3, and IMI 4) and to a control treatment (only dechlorinated tap water). Glutathione content, glutathione S-transferase activity, lipid peroxidation (LPO) and protein carbonylation levels, acetylcholinesterase (AChE) activity, and frequency of micronuclei and erythrocyte nuclear abnormalities (ENA) were measured in the fish. The muscle and gills were the most affected organs; their antioxidant defense was not enough to prevent oxidative damage (LPO) in the IMI 2 and IMI 4 treatment fish. IMI also inhibited AChE activity in the muscle (IMI 3 and IMI 4) and increased ENA frequency (IMI 4). IMI can affect the health of A. altiparanae in environmentally relevant concentrations, causing oxidative damage in different organs, neurotoxic effects in the muscle, and genotoxicity.