Experiments were conducted at the College of Fisheries, Mangalore, India, between 17
May 1999 and 24 August 1999 (Experiment 1, mahseer) and 28 October 1999 and 1
208 P. Keshavanath et al. / Aquaculture 213 (2002) 207–218
January 2000 (Experiment 2, fringe-lipped carp)