Assessment of gill pathological responses in the tropical fish yellowfin seabream of Persian Gulf under mercury exposure.

ABSTRACT: Gill histomorphological alterations were used to assess the effects of chronic exposure to HgCl₂ on the yellowfin seabream, Acanthopagrus latus. In this regard, 90 A. latus were exposed to sublethal concentrations of HgCl₂ (10, 20, 35 and 50 μg/L) for 3 weeks. Treated fish were erratic and showed respiratory distress. The most common morphological abnormalities included: filaments disorganization, increase of mucus secretion, debris and blood plaques on the filaments, losing or shortening of some filaments. The most frequent histopathological changes detected in the gills included extensive lifting of the lamellar epithelium and edema of lamellae with enlarged sub-epithelial spaces, exfoliated epithelium of lamellae, telangiectasia, hypertrophy and hyper

SUBMITTER: Hassaninezhad L 

PROVIDER: S-EPMC5598416 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature