These cages differ from open-net pens, as they are submersible cages in deeper water farther off the coast. With stronger oceans currents the farther out you go, water is filtered out and diluted more easily than with open-net pens. Offshore cages are attached to the sea floor and to buoys on the water’s surface. Species such as kanpachi, cobia, sablefish, and bass do well in off-shore cages. These cages are typically stronger than open-net pens, and continually becoming more secure as newer technology develops.