Ports, Erosion and Coastal Management in Ilhéus (BA): Territorial Transformations and Challenges for Preventive Planning

Objective: To analyze the relationship between the port history of Ilhéus (BA), coastal transformations and the exposure of inhabited areas, discussing guidelines for integrated management and preventive planning. Theoretical Framework: The analysis connects sediment dynamics, territorial transformation and integrated coastal management, relating port interventions, shorefront occupation and the distribution of risks. Method: Documentary and interpretive research combines scientific literature, institutional documents, the 2007 Shorefront Management Plan, emergency records, a legislative request, two published technical interviews and secondary shoreline indicators for 2018–2024. Results and Discussion: The comparison identifies historical connections between estuary and coast, differences between northern and southern sectors and the coexistence of regional average shoreline advance with local erosion and damage. Sources reiterate monitoring needs but differ regarding protection measures. Research Implications: The study proposes connecting continuous observation, territorial planning, protection of dunes and coastal sandplain vegetation (restinga), community safety and assessment of interventions through a participatory institutional arrangement and the gradual establishment of a coastal observatory. Originality/Value: The contribution lies in the documentary integration of regional indicators, local damage and institutional responses, supporting sector-specific decisions and incorporating Porto Sul into preventive planning.