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- W2035203721 abstract "Fingerlings of Clarias gariepinus were collected and tested for growth and survival in acute concentration of ammonia. Results showed that mortality was 10% at 1.5 mg.l-1, 20% at 2 mg.l-1, 30% at 3 mg.l-1, 50% at 4 mg.l-1 and 60% at 6 mg.l-1. 20% fingerlings showed dark colour on their body, respiratory distress and erratic swimming. 30% became hyper-excited and ventilated with rapid mouth and opercula movement. 10% were convulsive and motionless with a lot of mucous materials on the body to confer death. The 96-h LC50 value was 3.85 mg.l-1 while the threshold value was 3.80 mg.l-1. The fish fed vigorously at the initial introduction of food but the anxiety to feed declined as concentration and exposure time increased. Key words : Toxicity, ammonia, Clarias gariepinus. Journal of Aquatic Sciences Vol.18(1) 2003: 71-74" @default.
- W2035203721 created "2016-06-24" @default.
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- W2035203721 date "2003-01-01" @default.
- W2035203721 modified "2023-09-27" @default.
- W2035203721 title "Acute Toxicity of Ammonia to the African Freshwater Catfish <i>Clarias gariepinus </i>" @default.
- W2035203721 doi "https://doi.org/10.4314/jas.v18i1.19946" @default.
- W2035203721 hasPublicationYear "2003" @default.
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