IMPACT OF THE HABITAT DESTRUCTION AND POLLUTION EFFECT ON FISH FAUNAL DIVERSITY OF THE LAKE KOLLERU, ANDHRA PRADESH, INDIA

KRISHNA P.V.¹, MADHUSUDHANA R.K.², SUNITHA K.³, PRABHAVATHI K.^4
1KRISHNA P.V.Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, AP, India.
²Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, AP, India.
³Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, AP, India.
⁴Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, AP, India.

Received : 27-11-2013     Accepted : 18-12-2013     Published : 26-12-2013
Volume : 3     Issue : 1       Pages : 29 - 31
Bioinfo Environ Pollut 3.1 (2013):29-31

Lake Kolleru (16° 32' and16° 51' N and Longitudes 81° 05' and 81° 20' E) is the natural shallow coastal wetland formed between the River Godavari and Krishna in Andhra Pradesh. It has been functioning as a natural flood balancing reservoir between the deltas of above two rivers. Indiscriminate exploitations of the Kolleru Lake have been evidently resulted in the depletion of fish fauna and it leading to folding and other negative impacts. Anthropogenic pressure such as huge scale encroachment of lake bed for aqua farms, irresponsible use of fertilizers, pesticides, fish/prawn culture activities, domestic wastes and sewage from three municipalities and discharge of industrial effluents and agriculture run-off have vitally effected and altered the ecological changes. The detailed of the discussion on the fish faunal diversity and causative factors due to habitat destruction and pollution effect has been presented.