Full Length Research Paper
Abstract
The microbial population of the sampling stations was determined in the study during the rainy and dry season. It was observed that crude oil-producing areas are thickly populated with microorganism compared with the control site. This could be as a result of post-pollution microbial activity. Example is in Ayetoro recording the highest of 240 x 105 cfu/ml compared with Sabomi having a record of 7x103 cfu/ml as the highest in these periods. Various microbial species were encountered during the study including common oil degraders like Pseudomonas spp., Bacillusspp., Proteus spp., Enterobacter spp. and Klebsiella spp. A total of one hundred and seventy five (175) microbes were isolated and identified during the study. This includes Bacillus species (18), Bacillus pasteurii (2), Bacillus cereus (5), Bacillus macerans (9), Bacillus circulans (16), Bacillus coagulans (2), Bacillus subtilis (1),Bacillus licheniformis (3), Bacillus alvei (1), Bacillus panthothemicus (1), Klebsiella species (12), Veillonella spp. (15), Pseudomonas spp. (17), Pseudomonas diminuta (2) Pseudomonas mallei (2), Pseudomonas pseudomallei (1),Pseudomonas aeruginosa (1), Micrococcus spp. (17), Micrococcus varians (2),Neisseria spp. (4), Streptococcus spp. (6), Streptococcus homonis (1), Proteusspp. (9), Staphylococcus spp. (8), Staphylococcus aureus (1) Sarcina maxima(1), Enterobacter spp. (9), Serratia spp. (4), Serratia marcescen (2) andArthrobacter spp. (4).
Key words: Environment, microorganisms, crude oil-producing areas, Ondo State, population.
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