TBT (tributyltin) Toxicity to the Visual and Olfactory Functions of Tigerperch (Terapon jarbua, Forsskål)

Abstract

of the corneal epithelium. The retinomotor response of pigmented epithelium significantly decreased from 75.33% ± 2.88% (in the control group) to 63.33% ± 4.04% (p < 0.05, n = 3) in the 100 µg/l group. The separation and necrotic corneal epithelium may lead to partial opacity and/or irregular abrasion and thus decrease retinomotor responses. In addition, scanning electron microscopic studies revealed edema, deformity, and sloughing of the microvilli, cilia, and rods in receptor cells of the olfactory epithelium. Electroolfactogram (EOG) responses significantly decreased from −3.0 ± 0.6 mV to −1.3 ± 0.5 mV (1 µg/l) and −0.4 ± 0.1 (5 µg/l), respectively (n = 3).