Read the passage below carefully:
For generations, the coastal community of Keta in the Volta Region of Ghana relied on artisanal marine fishing as its economic backbone. However, relentless coastal erosion along the Bight of Benin threatened to submerge residential settlements and historical landmarks. In response, municipal authorities constructed a multi-million-dollar sea defense wall consisting of heavy granite boulders along the shoreline. The structural barrier successfully halted land loss and stabilized the coastline against destructive tidal waves. Nevertheless, oceanographers noted that the heavy barrier significantly altered localized hydrodynamics and longshore sediment transport. The changed current dynamics displaced delicate offshore mangrove nurseries and reduced fish concentrations near the shore. Consequently, local small-scale fishermen were forced to navigate much further into deep waters, requiring higher fuel expenditures that rendered daily fishing trips financially unviable for many. As traditional maritime livelihoods declined, an increasing number of young adults in Keta abandoned fishing to migrate to urban centers like Accra, seeking employment in petty trading and informal transportation services.
Evaluate the statement: Based on the passage, the construction of the sea defense wall indirectly caused demographic shifts in the community of Keta.
Answer: Answer