Gamlath, G.A.R.K.Wijeyaratne, M.J.S.2014-11-192014-11-191997Gamlath, G.A.R.K. and M.J.S. Wijeyaratne (1997). Indicator organisms of environmental conditions in a lotic water body in Sri Lanka -. Sri Lanka Journal of Aquatic Sciences, 2: 121 - 129.ISSN 1391-2038http://repository.kln.ac.lk/handle/123456789/3906Limnology; Fresh water biology; Water quality; Indicator organism; Environmental conditionsarticleEnvironmental Management