Toxicity of glyphosate herbicide formulation upon the freshwater prawn Palaemonetes argentinus (Crustacea, Decapoda, Palaemonidae)

MONTAGNA M.; COLLINS P.

Florianopolis Brasil

Congreso; 3rd Brazilian Crustacean Congress and 2004 and The Crustacean Society Summer Meeting; 2004

The Brazilian Crustacean Society & The Crustacean Society

Glyphosate is one of the most commonly used herbicides in agricultal systems in the world that control a broad-spectrum of worst weeds to cheap. The present study examine, under laboratory conditions, the acute concentration, oxygen consumption and ammonia-N excretion in palaemonetes argentinus under the influence of the ROUNDUP commercial formulation. Oxygen uptake and ammonia-N excretion of prawns exposed to concentrations was different than in controls animals. In glyphosate treatments, oxygen consumption and ammonia-N excretion decreased by a change in the metabolic activity. This variation could be showed in the metabolic requirement of oxygen consumption and the amino acids degradation. The physiologic effects suggest that this prawns to be sensible to ROUNDUP.