A Theoretical Framework for Coupled Human-Ocean System Resilience in Niger Delta Coastal Communities

The Niger Delta coastal system exemplifies the complex and poorly theorised interactions between oceanographic processes, ecosystem services, and the social-ecological dynamics of oil-dependent communities, demanding an integrative theoretical framework that transcends disciplinary boundaries. This dissertation proposes and tests a Coupled Human-Ocean System Resilience Framework, drawing on panarchy theory, social-ecological systems thinking, and oceanographic system science to characterise the adaptive capacity of Niger Delta coastal communities to compound stressors: oil pollution, sea level rise, fisheries collapse, and governance failure. The theoretical framework is operationalised through mixed-method empirical research in four communities across Bayelsa, Rivers, and Delta States representing contrasting social-ecological configurations (intact mangrove-dependent, degraded oil-impacted, peri-urban fishing, and government-managed reserves). Ecological resilience is measured through multi-year time-series analysis of fish abundance, mangrove biomass, and water quality. Social resilience is assessed through household livelihood portfolio surveys, social network analysis of community cooperation structures, and institutional analysis of local governance arrangements. Complex systems modelling using agent-based simulation explores feedbacks between ecological degradation trajectories and community livelihood adaptation. Bifurcation analysis identifies tipping points in the social-ecological system beyond which recovery becomes improbable without external intervention. The framework's original contribution lies in the explicit theorisation of feedbacks between oceanographic forcing (upwelling variability, sea level rise rate, storm surge frequency) and community adaptive capacity trajectories, providing mechanistic insight absent from existing resilience frameworks. Policy implications for the Niger Delta Development Commission and the Ministry of Niger Delta Affairs are derived. Keywords: coupled human-ocean systems, resilience theory, Niger Delta, social-ecological systems, panarchy