2.6.4 Cellular systems
Cellular systems, where crabs are kept in individual containers, can be used for
fattening, grow-out or soft-shell production.
Crab fattening systems can either be river, coastal or pond-based. Water quality is
essential for such operations, so this should be a critical factor in establishing such a
business. Crabs are kept in high densities, in close proximity to each other, so oxygen
demand will be higher than in low-density grow-out systems.