Publications by authors named "Joseph O Cheikyula"
This study attempted to discriminate the population of in Nigeria using their morphological characteristics. Therefore, 60 sexually mature wild samples of (1:1 for the male and female ratio) of relatively similar size (40 cm) were collected from three eco-regions namely, Guinea Savanna (Benue River, Makurdi), Rainforest Savanna (Niger River, Onitsha) and Sahel Savanna (Rima River, Sokoto). They were transported to the hatchery unit of the Fisheries and Aquaculture Department, Joseph Sarwan Tarka University Makurdi where the morphometric data was collected.
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- Common carp exposed to 1% and 5% dietary heavy oil for 2 weeks showed increased accumulation of polyaromatic hydrocarbons (PAHs) and higher EROD activity in the liver compared to the control group.
- Significant liver damage included changes like nuclear hypertrophy and degeneration, while the kidneys exhibited severe damage including necrosis and hemorrhaging.
- The severity of liver and kidney tissue damage increased with both the concentration of heavy oil and the length of exposure.