Microorganisms isolated from Imo River estuary were analyzed for hydrocarbonoclastic and extracellular enzyme potentials. Nin (19) microbial species with variable distribution and prevalence were species. The nineteen microbial isolates exhibited variable levels of amylolytic, lipolytic, proteolytic, cellulolytic and ch activity. Six out of the eleven bacterial isolates and of efficiencies. Thi...