According to the global environment outlook of 2019, meat production currently uses 77 percent of agricultural land and consequently, agricultural production consumes 70 per cent of the global freshwater resources. Therefore, to feed a population of 8.55 billion people globally by 2030, new strategies are required to ensure food is sustainably produced. In this regard aquaculture development provides the way to sustainably use the limited global water resources for food production. In the spirit of Blue economy, water resources in the Global Oceans are quite underutilized in food production. In an effort to establish the link between freshwater and marine water resources and make use of the unutilized space through aquaculture, research innovations has lead to development of Nile tilapia that can be farmed in the Ocean from the currently established freshwater Nile tilapia. The marine tilapia is successfully bred in the ocean waters and is farmed in intertidal earthen mangrove ponds and in ocean fish cages. Marine tilapia has been observed to have a growth rate of 1.2g/day, which is equivalent to growth rates, recorded in freshwater culture systems. The marine tilapia strain is now providing food and income to coastal communities who could otherwise have culture facilities without fish due to the lack of marine hatchery systems in Kenya and the region. This innovation will go a long way to support utilization of marine waters for aquaculture developed thus saving the freshwater resources for domestic consumption since they are already constrained by the different agricultural activities globally.