Bioremediation of Heavy Metals from Crude 0il Polluted Soil Using Serratia marcescens and its Toxicology Assessment on Aquaculture

Serratia marcescens has been studied to show a higher degradation potential for organo-phosphorus pesticides. This property made it useful as bioremediation agent. The bacterial cell was bio-stimulated in luria beterni broth at selected experimental temperature ranging from 25 ºC – 40 ºC. highest biomass recorded 35 range 7.56 -8.10mg/ml single strength and double yeast extract beterni, respectively. Percentage bio-sorption efficiency of both the culture extracted membrane protein augmented showed 100% removal heavy metals such lead, potassium manganese, percentage sorption also 99.2%, 95.9% 82% copper, nickel zinc, respectively, while improved corresponding metal with copper 86.5% zinc. extracts tend create oxygen stress an aquaculture model, reducing dissolved level 3 mg/l. Lethal dose 50 were high 14.14%; hence this toxicity or pathogenicity bacteria. that proteins promising environment; however, its effect on test fishes makes risk aquatic life.