Abstrakt

Toxicological perspective of cadmium on estuarine edible crab Scylla serrata regarding ovarian maturation.

Revathy R, Langeswaran VK, Balasubramanian MP

Background: Cadmium is more toxic to animals and humans even at low concentration than utmost
toxic metals, and naturally they are non-degradable can disorder biological systems. Industries and
factories cadmium salts liquefy in environmental waste water and finally interrupt the marine living
systems.
Aim: The present study aim is to investigate the impact of cadmium in the estuarine edible crab
Scylla serrata regarding some biochemical constituents.
Methodology: Crabs were divided into two groups whereas crabs belonging to group I were treated
as control (cadmium free-seawater). Crabs belonging to group II were exposed to cadmium at 20
mg/L concentration. The transaminase activity and estimation antioxidants enzymes have been
analyzed in the ovary, hepatopancreas, muscle and haemolymph of edible crab Scylla serrate during
several periods of the ovarian maturation.
Interpretation: Notable alterations in the activities of biochemical constituents and reproductively
active aquatic animal’sphysiological occupations were totally uncharacterized due to heavy metal
pollution and finally injury progression of reproduction. The outcomes exposed that, amplified
levels of transaminase and contractions activity of antioxidants in the cadmium reared crabs when
compared to the control. The observed results of this experiment were tested statistically