Despite being named "daegu" (cod), it's a saltwater fish from the Pleuronectiformes order, not Gadiformes, more closely related to flatfish or halibut than cod. It's a large fish, with a body length of more than 1 meter, and lives for about 20 years. Although it resembles cod, it can be distinguished by its lack of a beard on the lower jaw and two dorsal fins (cod has three dorsal fins). Even though it's a white flesh fish, it's rich in fat, earning it the name "toro" of white fish in Japan. Because of its rich, oily flavor, it's most commonly consumed as a stew in Japan.