DNA damage and repair efficiency (comet assay) in intensively reared fish populations exposed to heavy metals
DNA damage and repair efficiency (comet assay) in intensively
reared fish populations exposed to heavy metals
Water pollution has focused the attention of both the scientific community and
the public on environmental problems. Not only does water pollution affect the health
and welfare of people and organisms, but it also damages vegetation and properties.
Metals are elements found naturally in aquatic ecosystems due to various
processes such as weathering and erosion. Some of these metals are essential to living
organisms in trace amounts (for example copper and zinc). Essential trace elements
have a narrow optimal concentration range for growth and reproduction, and both
excess and shortage can be detrimental to organisms, with unusually high
concentrations becoming toxic to aquatic organisms.