Browsing by Author "Ayodele, I. A."

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    Presence of hydrocarbons and heavy metals in some fish species in the cross river, Nigeria.
    (2004) Olaifa, F. E.; Ayodele, I. A.
    The study was undertaken to determine the total hydrocarbon (THC) and heavy metal contents of fish (finfish and shelf fish) in the cross river, Nigeria. Fish samples were collected in the dry (March) and rainy (October) seasons between 2000-2002. The finfish species identified in the study were Synodontis clarias, Sarotherodon galilaeus, Heterotis niloticus, Scholbe mystus, ansorgil and the shelfish were macrobrachium vollenhovonii and tympanotnomus luscalus. Significant difference (P<0.05) existed between finfish andshellfish in both THC and heavy metals contents. The levels of THC in fish exceeded the World Health Organization's limit of 0.0001 ppm by an average of 3.2 and 15.57 mg/kg in fin and shelffish respectively. High concerntrations of vanadium and THC in fish samples were the main indicators of pollution from petroleum sources
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    Wildlife-human interface: a case study of Yankari national park Bauchi State, Nigeria
    (2003) Akinyemi, A. F.; Ayodele, I. A.
    Most of the serious problems facing protected areas in Africa today has a human component. Among the more common problems are human encroachment, unauthorized harvesting of resources, and the conflict between wildlife managers and local people. The study illustrates the major wild Animals, agricultural and livestock pest in the study area and the attitudes of the farmers/villagers to wild animal species. A land-use planning system that incorporate a floating zoning system which ultimately merge with a permanent zoning system with range of vegetation such as multipurpose trees and shrubs (MPTS) around the park will allow traditional grazing and avoid conflict with local people.