Sugumar G, Chrisolite B, Velayutham P, Selvan A, Ramesh U
Fisheries College and Research Institute, Tamil Nadu Veterinary and Animal Sciences University, Thoothukudi-628 008, India.
J Environ Biol. 2008 May;29(3):387-91.
Theprevalence and seasonal variation of bacterial indicators of faecal pollution such as total coliform bacteria, faecal coliform bacteria, Escherichia coli and faecal streptococci were investigated in samples of water and beach sand from the four fish landing centres of Thoothukudi. Further the samples were screened for Salmonella to study the reliability of faecal indicator bacteria as an index of human pathogenic bacteria. Total coliform bacteria, faecal coliform bacteria and Escherichia coli were isolated from all four landing centres from undetectable to the maximum detectable level of over Most Probable Number 140 throughout the year with no obvious seasonal variation. Faecal streptococci were also detected in most samples. There was no discernable relationship between faecal indicators and physical parameters. The relationship between faecal indicators and Salmonella was not significant (p > 0.05). The results showed that the coastal waters along Thoothukudi is polluted and presents a potential risk to public for recreational and fishing activities.
对图蒂科伦四个鱼类上岸中心的水样和沙滩沙样中粪便污染细菌指标(如总大肠菌群、粪大肠菌群、大肠杆菌和粪链球菌)的流行情况和季节变化进行了调查。此外,对样本进行沙门氏菌筛查,以研究粪便指示菌作为人类病原菌指标的可靠性。全年从所有四个上岸中心均分离出总大肠菌群、粪大肠菌群和大肠杆菌,含量从检测不到到超过最大可检测水平(最可能数超过140),无明显季节变化。大多数样本中也检测到粪链球菌。粪便指示菌与物理参数之间没有明显关系。粪便指示菌与沙门氏菌之间的关系不显著(p>0.05)。结果表明,图蒂科伦沿海海域受到污染,对公众的娱乐和捕鱼活动构成潜在风险。