Abstract Title:

Effects of Glyphosate-Based Herbicide Sub-Lethal Concentrations on Fish Feeding Behavior.

Abstract Source:

Bull Environ Contam Toxicol. 2017 Apr ;98(4):460-464. Epub 2017 Feb 10. PMID: 28188320

Abstract Author(s):

Percilia Cardoso Giaquinto, Marina Borges de Sá, Vanessa Seiko Sugihara, Bruno Bastos Gonçalves, Helton Carlos Delício, Assaf Barki

Article Affiliation:

Percilia Cardoso Giaquinto


Glyphosate-based herbicides are widely used in agricultural systems. Although the target organism are particularly plant organisms, there are numerous studies showing adverse effects in aquatic animals, such as inhibition of acetyl cholinesterase, effects on kidney, liver, and gill and stressors effects. This study analyzed the effects of commercial formulation of glyphosate on feeding behavior in Pacu (Piaractus mesopotamicus). Fish were exposed to three glyphosate concentrations (0.2, 0.6, and 1.8 ppm) for 15 days. At concentrations of 0.2 and 0.6 ppm, food intake decreased on day 13 and then returned to normal on day 15. At the highest glyphosate-based herbicide concentration, 1.8 ppm, food consumption decreased dramatically and did not recover on day 15. This study showed that glyphosate-based herbicide at sub-lethal concentrations can affect feed intake in pacu and consequently inhibits its growth.

Study Type : Animal Study
Additional Links
Problem Substances : Glyphosate : CK(895) : AC(304)

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