A. L. KORAİ, G. A. SAHATO, K. H. LASHARİ, S. N. ARBANİ

Biodiversity in relation to physicochemical properties of Keenjhar Lake, thatta district, sindh, Pakistan

Keenjhar Lake is an artificial and tropical lake. It is located almost 120 km from Karachi; Keenjhar Lake is essential for diverse aspects such as, supply of drinking water, irrigation and wild life intention. Adverse effects of physicochemical parameters on aquatic ecosystem may occur at all levels of biological communities can be wide-ranging or limited, temporary or permanent. Mainly serious effects involve loss in productivity, changes in growth, loss of primary productivity, altered diversity or community structure, changes in aquatic ecosystem process (such as nutrient cycling) and losses of valuable species. These ecological losses in turn may be economically, aesthetically, or socially important. Hence, the present research work was planned to resolve the physicochemical properties and biota of Keenjhar Lake. Biota and physicochemical properties of Keenjhar Lake were determined beginning from January until December 2005. A total of 142 species of phytoplankton, 37 species of zooplankton, 39 species of aquatic plants, 51 species of fishes, and 8 species of prawns were recorded. The physicochemical properties such as temperature, alkalinity, dissolved oxygen, salinity, conductivity, total dissolved solids, chlorides, turbidity, pH, and hardness were determined on monthly basis. The physicochemical properties of Keenjhar Lake were suitable for growth of aquatic biota.

Anahtar Kelimeler:

Pakistan, biyoçeşitlilik, zooplankton, fizikokimyasal özellikler, göller, fitoplankton

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Ahmed, N. 1962. Fishery Gazetteer of district Thatta. Government of West Pakistan Directorate of Fisheries.

Ahmed, N. and Younus, M. 1979. Aquatic plants of Lahore, Pakistan Jour. Adv. Sci., 1-79.

American Public Health Association (APHA). 1980. Standard methods for the examination of water and waste water. 15th Ed., Washington D.C., 20022 pp.

Baquai, I.U., Zuberi, V.A. and Iqbal, M. 1974a. Limnological studies of Kalri Lake. Agri. Pakistan 25(2): 119-135.

Baquai, I.U., Perwaiz, A.S. and Iqbal, M. 1974b. Limnological studies of Haleji Lake. Agri. Pakistan. 25(4): 321-344.

Blatter, E., Mc. Cann, C. and Sabnus, T.S. 1929. The flora of Indus delta. Ind. Bot. Soc. Methodist. Pub. House, Madras, 173 pp.

Cook, C.D. 1996. Aquatic and wet land plants of India (Reprinted in 1978) William Dawson and Sons London, 778 pp.

Davis, C.C. 1955. The marine and Fresh Water Plankton Michigan State University Pres, Michigan, 562 pp.

Day, F. 1878. The fish of India; being a natural history of the fish known to inhibit the seas and fresh waters of India, Burma, Ceylon text and altas in 4 Pts., London.

Desikachary, T.V. 1959. Cyanophyta I.C.A.R. New Delhi, 686 pp.

Framan, M.A.H. 1981. Standard methods for the analysis of water and waste water 15th edition. American Public Health Association. Washington.

Jahangir, T.M., Khuhawar, M.Y., Leghari, S.M., Balouch, W.A. and Leghari, A.A. 2000. Some studies on water quality and biological life at Keenjhar and Haleji Lakes of district Thatta, Sindh, Pakistan. Pakistan J. of Biological Sci., 3(11): 1965-1972.

Jayaram, K.C. 1999. The fresh water fish of the Indian Region. Narendra Publishing House Delhi- 110006 (India).

Khan, S. and Halim, M. 1987. Aquatic Angiosperms of Bangladesh. Bangladesh Agri. Res. Coun., Bangladesh, 190 pp.

Lashari, K.H., Sahato, G.A. and Arbani, S.N. 2001. Ecological studies of zooplankton in Keenjhar Lake, Thatta, Sindh, Pakistan. Hamdard Medicus, 44(1): 78 81.

Leghari, S.M. and Arbani, S.N. 1984. Survey of Fresh water algae (Cyanophyceae) from ponds and lakes of lower Sindh. Sindhological studies (summer): 67-90.

Leghari, M.K., Sahato, G.A., Arbani, S.N. and Leghari, M.Y. 1997. Ecological survey of phytoplankton in fresh water Lake Bakar district Sanghar Sindh, Pakistan. Sindh University Research Journal (Sci. Sr), 29(2): 83-94.

Leghari, S.M., Jafri, S.I.H., Mahar, M.A., Lashari, K.H., Ali, S.S., Khuhawar, M.Y. and Jahangir, T.M. 1999. Biodiversity of Chotiari reservoir, district Sanghar Sindh, Pakistan. In: Q.B. Kazmi and M.A. Kazmi (Eds.), Proceedings of the seminar on aquatic biodiversity of Pakistan. Sindh: 139-157.

Leghari, S.M., Jafri, S.I.H., Mahar, M.A., Lashari, K.H., Ali, S.S., Jahangir, T.M. and Khuhawar, M.Y. 2000. Limnological study of Sonharo, Mehro, Pateji and Cholari Lakes of district Badin, Sindh Pakistan. Pakistan J. of Biological Sci., 3(11): 1904-1909.

Leghari, M.K., Leghari, M.Y. and Arbani, S.N. 2005. Monthly variation in physico-chemical properties of fresh water Lake Makhi, Sanghar, Sindh, Pakistan. Int. J. Phycol. Phycochem., 1(2): 135-142.

Mahmood, G., Javed, M. and Hassan, M. 2000. Assessment of river Ravi for the physico-chemistry and heavy metals toxicity of water. Pakistan J. of Biological Sci., 3(11): 1962-1964.

Michael, A.A. 1967. The Indus River: A Study of the Effects of Partition. New Haven, CT: Yale University Press, London, 328 pp.

Mirza, M.R. 1990. Fresh water fish of Pakistan. Urdu science board, Lahore, 128 pp.

Mirza, M.R. and Shafique, H.M. 1996. A key to the fish of Punjab. Ilmi Kotab Khana, Lahore, 32 pp.

Kuriom, C.V. and Sebastian, V.O. 1993. Prawns and Prawn Fisheries of India, 4th revised edition. Hindustan Publishing Corporation, Delhi, 110007, D.K. Fine Art Press, Delhi, 110052 pp.

Prescott, G.W. 1962. Algae of Western great Lakes area, W. M. C. Brown company publishers Dubuque, Iowa, 977 pp.

Sahato, G.A. and Arbani, S.N. 1997. Quantitative distribution and percentage density of planktonic algae of fish hatchery ponds at Chillia district Thatta. Sindh. Sindh University Research Journal (Sci. Sr), 29(1): 127-135.

Sahato, G.A., Leghari, M.K. and Arbani, S.N. 1997. Fresh water algae of Sindh-IV an ecological survey of phytoplankton (Oscillatoriaceae) of Phoosna Lake, district Badin, Sindh, Pakistan. Sindh University Research Journal (Sci. Sr), 29(2): 51-56.

Sahato, G.A. and Lashari, K.H. 2003. Occurrence of phytoplanktonic communities in river Indus at the Kotri barrage Sindh, Pakistan. Hamdard Medicus. 46(1): 133-136.

Salam, A.A., Chowdhry, A., Ansari, and Nadeem, S. 1997. Studies on the effect of seasonal variations of physico-chemical parameters of Indus River. Sindh University Research Journal (Sci. Sr), 29(1): 41-50.

Siddiqui, P.A., Baquai, I.U. and Iqbal, M. 1973. Check list of fish of Keenjhar (Kalri) Lake with notes on environmental conditions and fisheries potential. Agri. Pakistan 24(2): 201-220.

Subramanyam, K. 1962. Aquatic Angiosperms. Industrial research Council of Science New Delhi, 120 pp.

Sufi, S.M.K. 1957. Fish fauna of the Keenjhar Lake with an account of the major fishing implements employed by local fisher man. Agri. Pakistan, 8 (3): 208-229

Treadwell, P.F. and Hall, W.T. 1919. Analytical chemistry 25th edition. Qualitative analysis. 1921. Translated by W.T. Hall. New York, 698 pp.

Ward, H.B. and Whipple, G.C. 1959. Fresh Water Biology 2nd Edition, John Willey London.

Welch, P.S. 1948. “Limnological methods”. McGraw Hill Book Company Inc. London: 101-297.