Oboh B.O., Adeyinka Y., Awonuga S., Akinola M.O.
Department of Cell Biology and Genetics, Environmental Biology Lab., University of Lagos, Lagos, Nigeria
Oboh, B.O., Department of Cell Biology and Genetics, Environmental Biology Lab., University of Lagos, Lagos, Nigeria; Adeyinka, Y., Department of Cell Biology and Genetics, Environmental Biology Lab., University of Lagos, Lagos, Nigeria; Awonuga, S., Department of Cell Biology and Genetics, Environmental Biology Lab., University of Lagos, Lagos, Nigeria; Akinola, M.O., Department of Cell Biology and Genetics, Environmental Biology Lab., University of Lagos, Lagos, Nigeria
Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum effluents exhibited different morbidity and mortality responses. Lake sediments caused varied fluctuations in weight over a 20 day exposure period. Colour changes and mortality up to 15% were observed in earthworms cultured in 100% lake sediment, while weight loss, coiling and sluggish movement were observed in 50% lake water. The effects of 100% dump-site soils were more pronounced as 40% death, swelling, body lesions, stiffening, coiling and low reproduction were recorded. Earthworms were useful as an organism in testing the toxicity of dump-site soils and effluent from a petroleum industry. Dump-site soils and soils polluted with petroleum effluent reduced populations of earthworms and this could subsequently affect other components of the ecosystems associated with earthworm activities. © Triveni Enterprises.
petroleum; earthworm; effluent; lacustrine deposit; morbidity; mortality; petroleum; physiological response; pollution exposure; population decline; soil pollution; soil type; toxicity test; animal experiment; article; biomass; controlled study; earthworm; effluent; environmental exposure; Eudrilus eugeniae; exposure; lake ecosystem; morbidity; mortality; nonhuman; petrochemical industry; soil; soil pollution; Animals; Body Weight; Industrial Waste; Oligochaeta; Petroleum; Refuse Disposal; Soil Pollutants; Waste Disposal, Fluid; Water Pollutants, Chemical; Eudrilus eugeniae