Biodiversity and Conservation on Pulicat Lake

Topics: Chennai, Andhra Pradesh, Species Pages: 2 (468 words) Published: November 19, 2010
S.K. M.BASHA*, E.RAJYALAKSHMI, B.RATNESWARA RAO P. UMA MAHESHWARI,,, Assocate Professor and Research scholars, NBKR Medicinal Plant Research Centre, Vidyanagar – 524413, SPSR Nellore Dist, Andhra Pradesh, India.

The lagoon’s boundary limits range between 13.33° to 13.66° N and 80.23° to 80.25°E, with a dried part of the lagoon extending up to 14.0°N.; with about 84% of the lagoon in Andhra Pradesh and 16% in Tamil Nadu. The large spindle-shaped barrier island named Sriharikota separates the lake from the Bay of Bengal. Three major rivers which feed the lagoon are the Arani River at the southern tip, the Kalangi River from the northwest and the Swarnamukhi River at the northern end, in addition to some smaller streams. The Buckingham Canal, a navigation channel, is part of the lagoon on its western side. The lagoon's water exchange with the Bay of Bengal is through an inlet channel at the north end of Sriharikota and out flow channel of about 200 metres (660 ft) width at its southern end, both of which carry flows only during the rainy season. The lagoon has rich flora and fauna diversity, which supports active commercial fisheries and a large and varied bird population.The lake has rich fish diversity, mostly marine species, some truly brackish water and a few freshwater species. Mullets and Catfish are the major brackish water fish, which have supported sustenance fishing for the lake fishermen. The highest concentrations of flamingo are found in the periphery of the lagoon where the water level is below40 centimetres. The concentrations of flamingos are also associated with high algal, fish and benthic diversity. Aquatic vegetation

Aquatic vegetation includes eight Cyanophyceae, seven Chlorphyceae and two Rhodophyceae. Patches of residual, dry, evergreen forest...
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