New report: Marine-based nursery systems for hatchery-produced Ostrea seed
In a surface-based spawning system, survival was better and the fry grew large enough to be moved to a further production system more quickly.
Researchers at IVL compared two low-tech, sea-based systems for hatchery oyster juveniles, one surface-based and one suspended. For the first 40 days, the oyster juveniles grew equally fast in both systems, but only 30 days later, the juveniles from the surface-based system were large enough to be moved to a further production system. In the hanging system, it took another 25 days. Survival was also better in the surface-based system. The experiments were carried out with Ostrea edulis, European oysters.