A study by Tunatech of Germany, funded by the European Union, will continue into its third year to investigate the survival rates of juvenile Atlantic bluefin tuna released at sea compared to those released near ranches. The study involves incubating high-quality bluefin tuna eggs at sea and marking their DNA to track their origin. Previous results suggest that this method can also monitor the home-site fidelity of the maternal parents of both broodstock and production fish from different years.