Abstract
Studies on the Plasma Albumin and Globulin Contents of the African Catfish (Heterobranchus bidorsalis) Adult Injected with Graded Concentrations of Bonny-Light Crude Oil
Highlights
The low survival rates of the giant African catfish
Many workers (Stobber et al, 1978; Cardwell, 1979) have reported on the toxicity resulting from oil spills that occurred in aquatic environments near big oil industries, and stated that fish larvae, fingerling and eggs are quite sensitive bioassay test organisms H. bidorsalis in the Nigeria waters is a highly esteemed hardy fish due to the possession of accessory airbreathing organs which, enable it tolerate diverse aquatic conditions (Reed et al, 1967)
Four (4) days was adopted as the toxicity period of the injected Bonny-light crude oil (BLCO) concentration in the fish since freshwater fish are used as 96 - hours bioassay test organisms for the determination of crude oil toxicity (Kopperdaul, 1976)
Summary
The low survival rates of the giant African catfish Freshwater fish are used as 96 - hour bioassay test organisms (Kopperdaul, 1976) for the determination of crude oil toxicity. Crude oil exposures of adult marine fish species have been reported to increase the mortality rate and changes in the haemoglobin content of blood (Tatem et al, 1979).
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