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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Mar 2009, 29 (2)                                     Back


Ovarian development in Labeo dyocheilus (McClelland) during active

Evaluation of physical, chemical and microbiological properties

of lake Uluabat, Turkey

Ayse Elmaci*, Fatma Olcay Topac, Nihan Ozengin, Arzu Teksoy, Sudan Kurtoglu and Huseyin Savas Baskaya

Department of Environmental Engineering, Faculty of Engineering and Architecture, Uludag University,

Gorukle, Bursa-16059, Turkey

(Received: May 12, 2006 ; Revised received: March 03, 2007 ; Accepted: April 20, 2007)

Abstract: Lake Uluabat, known for its scenic beauty and richness of aquatic life, is situated in Marmara Region, Bursa (Turkey). On account of its importance, lake Uluabat was designated by the Ministry of Environment as a Ramsar site in 1998.Physical, chemical and microbiological parameters of the aquatic ecosystem in lake Uluabat were measured monthly at five stations from February 2003 to January 2004. The results showed that lake Uluabat can be classified as Class I with respect to temperature (16.36 ± 7.47oC), nitrate nitrogen (0.63  ± 0.50 mgl-1), sodium (9.64  ± 2.78 mgl-1), chloride (20.45 ± 4.59 mgl-1), sulphate (54.80 ± 29.97 mgl-1); as Class II with respect to dissolved oxygen (7.62  ± 1.99 mgl-1), ammonium nitrogen (0.52 ± 0.49 mgl-1), chemical oxygen demand (35.74±10.66 mgl-1), total coliform (2027 MPN100 ml-1 (average value)); as Class III with respect to pH (8.69 ± 0.16) and as Class IV with respect to total nitrogen (84.94 ± 66.13 mgl-1), total phosphorus (1.11 ± 3.01 mgl-1), biochemical oxygen demand (21.21 ± 6.60 mgl-1) according to TWPCR (Turkey Water Pollution Control  Regulation). The nutrient content of lake water apparently indicated that lake had an eutrophic characteristic. Phosphorus was determined as a limiting factor in lake. The measured hardness values (140.94  ± 14.61 CaCO3  mgl-1) indicated that lake water was classified as soft/hard during the study period. Eutrophic characteristic of the lake and contaminant accumulation in water will probably affect the future use of the lake. Therefore, pollution parameters must be regularly monitored and evaluated according to aquatic living and local regulations.

Key words: Water quality, Lake Uluabat, Ramsar site, Turkey

PDF of full length paper is available with author (aelmaci@uludag.edu.tr)

 

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