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The Fisher Folks Perspective of Ranking Pollutant Sources Impacting Fisheries Resources in the Niger Delta, Nigeria

並列摘要


The fisher florks perspective of ranking pollutant sources impacting fisheries resources in Nigeria was studied for a period of one year (January-December 2008) A survey of nine hundred artisanal fishers were carried out using structured questionnaire to obtain opinions on their perspectives regarding severity ranking of environmental factors identified to impact on fisheries resources and artisanal fishing in three states of the Niger Delta region. The states are Bayelsa, Delta and Rivers state. Kendall coefficient of concordance ranking techniques, Likert mean and Likert mean of means analysis were employed to analyze the opinion of the respondent fishers in each of the state. Nine environmental factors that had been identified via literature as most commonly impacting on fisheries resources were analyzed. The factors are; Incidence of crude oil pollution, Industrial pollution, Thermal pollution, Sewage pollution, Gas flaring, Erosion, Flooding, Siltation and physical obstruction of water bodies. The severity of the impact of each of the listed factors was found to be in a descending order of magnitude from the first to the last in all the three states surveyed. This study has therefore validated and generalized that crude oil related incidences as often claimed in various literatures exacts the most severe impacts on fisheries resources of the states studied. For an effective result in terms of remediation measures, it is therefore recommended that top most priority be accorded crude oil pollutant sources, followed by other factors based on the identified magnitude of impacts established by this study for each factor.

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