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Abundance of Pisces and Status of Water of mathabhanga-Churni River in Indo-Bangla Border Region

2012; World Wide Journals; Volume: 3; Issue: 7 Linguagem: Inglês

10.15373/22778160/july2014/102

2277-8160

Bidhan Chandra Biswas, Ashis Kumar Panigrahi,

Fish Ecology and Management Studies

Measurement of water quality parameters plays a vital role in determining the pollutional load and correctness of a particular water body for aquatic organisms. The present investigations was carried out to measure the physiochemical parameters of MathabhangaChurni river in Indo-Bangla Border region to assess the pollution status for a period of one year from June 2012-to May 2013. The calculated physiochemical parameters revealed that the average ranges of Temperature, pH, DO, BOD, COD, Hardness, Alkalinity, Nitrate, Organic carbon and Freeco2 were 33.150c and 19.260c, 8.4 and 6.4, 5.1mg/l and 0.88mg/l, 46mg/l and 2.04mg/l, 420mg/l and 250mg/l, 660mg/l and 322mg/l, 560mg/l 380, 95mg/l and0.99 mg/l, 54mg/l and 16.4mg/l, 22mg/l and 05mg/l respectively. The results obtained from study showed that the measured parameters exhibit a great seasonal variation in different months of the year during the investigation and showed great difference in standard criteria of water quality indicates huge pollution effect on aquatic organisms especially on fish faunal diversity.33 fishes were identified during the investigation from one year and most of the species were carps and cat fishes. Labeo rohita, Cirrhina mrigala, Catla catla are dominant among carps and Heteropneustus fossilis,Clarius batrachus,Notopterus notopterus, Mystus cavasius, Mystus vitatus are most common among the cat fishes. Eutopiictys vacha, Puntius sophore, Notopterus chitala,Corica saborna and Gudusia chapra, Rita rita are rarely found during investigation. The river faces a great ecological threat affecting the fish diversity. Some protecting measure should be taken to combat water pollution in order to save the valuable natural resources. ABSTRACT