ter and sediment quality parameters in the Chalan Beel, the largest wetland of Bangladesh

• Published in: 中国海洋湖沼学报：英文版 2015 (4), p.895-904
• Main Author: SAYEED Md. Abu HOSSAIN Mostafa Ali Reza WAHAB Md. Abdul HASAN Md. Tawheed SIMON Kumar Das MAZUMDER Sabuj Kanti
• Format: Article
• Language: English
• Subjects: 交换性钾; 发票; 孟加拉国; 水质参数; 沉积物质量; 淡水鱼; 湿地; 质量参数
• ISSN: 0254-4059; 1993-5005

A study was conducted to investigate the status of the water and sediment quality in the Chalan Beel-a major fresh water fish reservoir of the country for a period of one year from July 2007 to June 2008. The mean values of water quality parameters （depth： 214.73±152.22 cm, temperature 27.68±4.26℃, transparency 123±82 cm, pH 9.7±0.47, total alkalinity 137±42 mg/L, conductivity 307±147 μs/cm, total dissolved solids 183±89mg/L, ammonia-N 0.27±0.39mg/L, nitrate-N 0.09±0.07mg/L, phosphate-P 2.01±2.53 mg/L） and sediment quality parameters （pH 7.21±0.35, organic matter 2.59±0.52%, total nitrogen 0.09±0.04%, available phosphorus 5.4±3.6 Meq./100 g and exchangeable potassium 0.43±0.14 Meq./100 g） were within the range recommended for most of the inland fishes of Bangladesh. Although the water and sediment quality parameters except ammonia and phosphate are in the suitable range, the overall results suggest that better management techniques should be practiced in order to overcome the declining trend of associated aquatic life （fauna and flora） of this important fresh water body of Bangladesh.