In
this study, Nile tilapia, Oreochromis niloticus kept in the medium with
or without green algae, Cladophora glomerata was exposed to sublethal
concentrations of 0.1 mg/l and 1 mg/l Cd+2. At the end of 15 and 30
day periods, fish gills were removed to investigate histolopathological
alterations by light microscopy. As a result of cadmium application; in the
gills, changes were observed such as curling and fusion in secondary lamellae,
epithelial hypertrophy, epithelial hyperplasia, pillar cell breakage, edema,
swelling, aneurysm, necrosis and increased mucus secretion. The severity of the
alterations resulting from cadmium increased with dose-time dependent.
Histopathologic effects were observed to be lighter in the groups contained
algae. This suggests that algae-like organisms in the environment accumulate
some of the cadmium in their bodies, causing fish to be less affected.
Primary Language | English |
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Subjects | Structural Biology |
Journal Section | Articles |
Authors | |
Publication Date | March 30, 2017 |
Published in Issue | Year 2017 Volume: 30 Issue: 1 |