The zooplankton is fundamental character in the significance of an aquatic ecosystem and plays a key role in the energy transfer.
Freshwater zooplankton plays an important role in ponds, lakes and reservoirs ecosystem and food chain [1].
Zooplankton feed on phytoplankton.
They are responsible for eating millions of little algae that may otherwise grow to an out-of-control state.
The inadequate knowledge of plankton and their dynamics is a major handicap for the better understanding of the life process of fresh water bodies.
Aquatic ecosystem is affected by several health stressors that significantly deplete biodiversity.
In future, the loss of biodiversity and its effects are predicted to be greater in aquatic ecosystem than terrestrial ecosystem [2].
Zooplankton species have different types of life histories influenced by seasonal variations of biotic factors, feeding ecology and predation pressure.