WHAT
IS BIO-MONITORING :
Monitoring
is an important tool for water quality management. It can be defined as "the process
of repeated observations and measurement for defined purposes of one more indicators
of the physical, chemical or biological state of an environmental element or medium.
Bio monitoring is the introduction of biological variables for assessment
of the structural and functional aspects of aquatic ecosystems Bio-monitoring
can be used as a cost-effective means for supplementing the physco-chemical techniques.
Bio-monitoring can help in determining the impacts of aquatic ecosystem due various
reasons including the following:
- Non-availability
if water in monsoon periods;
- Low
oxygen conditions and eutrophication;
- High
faecal coliforms content;
- Presence
of heavy metals;
- Elimination
of sensitive species; and
- Damage
due to autochthonous and allochthonous pollution
|
