Feeding intensity in relation to months: Active feeding was recorded during September 2005 (67.9%) and February (58.3%), April (67.5%), August (68.3%) and September (72.5%) 2006 (Fig. 5). While moderate feeding was observed during January 2006, June-August (> 30.0%), poor feeding was recorded in more than 20% of fish during November 2005-January 2006. Higher percentages of empty stomachs were encountered during all the months of the study with the highest (64.3%) during November 2005 followed by July 2006 (52.5%).