Observations on some common parasites of Bagrus docmac Forskahl (pisces: siluroidea) of lake Victoria

During the June–August period, 1977, four sets of water and sediment samples were collected for bacteriological analysis, from a salt-fresh water shoreline transect in Northern Canada (51°30 north latitude). Samples were processed for health indicator bacteria, organic sulfur reducing bacteria, ammonifying bacteria, denitrifying bacteria and ATP. Some chemical parameters were also studied. Based on the water classification scheme proposed by Sorokin & Kadota, the total bacterial population found in the sea sampling stations, would indicate that these waters are very eutrophic. The microbial biomass in these waters leads one to suspect that there may be an underestimation of the potential biodegradation capacity of these waters.