Lethal effects of inorganic mercury on cells and tissues of Trichomycterus brasiliensis (Pisces; Siluroidei).

The uptake of heavy metals like mercury is rapid and tissue and cell pathologies are a consequence of its concentration in water and the time of exposure. For Trichomycterus brasiliensis, inorganic mercury is lethal above 0.1 mg.

Acute effects of mercuric chloride on the olfactory epithelium of Trichomycterus brasiliensis.

The olfactory organ in fish has a distinct localization, a major biological significance, and an important role in fish behavior. One group of Trichomycterus brasiliensis was exposed to two different concentrations of mercuric chloride (0.05 and 0.