Sandfish themselves are preyed upon by Pacific cod and Pacific halibut. Pacific halibut fishing is managed by the International Pacific Halibut Commission. Fishing for Pacific halibut is regulated by the International Pacific Halibut Commission. Pacific halibut belong to the family Pleuronectidae. Pacific halibut have diamond-shaped bodies. Larger skates and Pacific halibut are known predators of prowfish. Hippoglossus stenolepis, the Pacific halibut, is a species of righteye flounder. The IFC was renamed the International Pacific Halibut Commission and expanded to six members. The Pacific halibut is the largest flatfish in the family Pleuronectidae. Pacific halibut is broken up into 10 regularity management areas. Pacific halibut are a major predator of "O. gracilis". Pacific halibut and Calico bass are also popular game fish. Teleost response was confirmed using captive Cobia ("Rachycentron canadum") and Pacific halibut ("Hippoglossus stenolepis").