Sustainability of fish resources and related activities means protection of the fish stocks, the ecology and the marine environment in general through the implementation of resource sensitive measures such as closures during breeding times and use of selective fish gear. Sustainable development aspects include Maximum Sustainable Yield (MSY) and Catch Per Unit Effort (CPUE) which is species targeted and low to zero emissions fishing. Economical management of marine resources- ecosystems based fisheries management (EBFM) increases sustainability since it takes into consideration the entire ecological system. Strategies designed within the frame of EBFM restore the ecosystem, increase climate change mitigation and adaptation, provide food assurance and are employed in ethical and sustainable long-lasting fishing.