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This research investigated the impact of marine ecosystem disturbances on the sources of income of the people in Ibeno Local Government Area of Akwa Ibom State. The main objective was to determine the influence of environmental disturbances on the sources of income of people in the oil producing coastal areas of Ibeno. The study took a period of two years and involved collection of water samples from twelve locations in six coastal communities in Ibeno for laboratory analysis, and administration of 410 questionnaires out of which 400 were used to extract data on sources of income (occupation) and environmental disturbances. Multiple regression analysis and Analysis of Variance (ANOVA) were employed to determine the relationship between sources of income (Y) and environmental disturbances (Xs). In the final analysis, the water physiochemical property test shows a relatively normal nutrients loading in the area but act in synergy with others in impacting on the environment. Seven elements of environmental disturbances were identified; erosion, acid-rain, deforestation, tidal actions, oil pollution, coastal flooding and rise in sea level. The study equally revealed that fishing was the major source of income of the coastal people and was mostly affected. In the regression analysis, the environmental disturbances and the sources of income (occupation) relate significantly at 0.5% probability test. The study concluded that the synergic effect of acid-rain due to oil activities, run-off sediments deposited in the river, direct and accidental discharge of crude into the river, coastal flooding/tidal actions that spread the pollutants along the coast and mangrove removal, destroyed fishes, reduced catch and cause serious decline in the income base of the people in Ibeno. Thus, it is important to promote environmental protection, conservation and sustainable harvesting to remedy the situation.
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