0_Wizard
Do you know much about Cod?  I read that it belongs to the family Gadidae
Cod is the common name for the genus "Gadus" of demersal fishes, belonging to the family Gadidae.
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Cod
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Cod
Cod is the common name for the genus "Gadus" of demersal fishes, belonging to the family Gadidae. Cod is also used as part of the common name for a number of other fish species, and some species suggested to belong to genus "Gadus" are not called cod (the Alaska pollock). The two most common species of cod are the Atlantic cod ("Gadus morhua"), which lives in the colder waters and deeper sea regions throughout the North Atlantic, and the Pacific cod ("Gadus macrocephalus"), found in both eastern and western regions of the northern Pacific. "Gadus morhua" was named by Linnaeus in 1758. (However, "G. morhua callarias", a low-salinity, nonmigratory race restricted to parts of the Baltic, was originally described as "Gadus callarias" by Linnaeus.)
Cod fisheries
Cod fisheries are fisheries for cod. Cod is the common name for fish of the genus "Gadus", belonging to the family Gadidae, and this article is confined to the three species that belong to this genus: the Atlantic cod, the Pacific cod and the Greenland cod. Cod are demersal fish found in huge schools confined to temperate waters in the northern hemisphere. Atlantic cod are found in the colder waters and deeper sea regions throughout the Northern Atlantic. The Pacific cod is found in both eastern and western regions of the Pacific. Atlantic cod can grow to in length. Its average weight is , but specimens weighing up to have been recorded.
Atlantic cod
The Atlantic cod ("Gadus morhua") is a benthopelagic fish of the family Gadidae, widely consumed by humans. It is also commercially known as cod or codling. Dry cod may be prepared as unsalted stockfish, as cured salt cod or clipfish. In the western Atlantic Ocean, cod has a distribution north of Cape Hatteras, North Carolina, and around both coasts of Greenland and the Labrador Sea; in the eastern Atlantic, it is found from the Bay of Biscay north to the Arctic Ocean, including the Baltic Sea, the North Sea, Sea of the Hebrides, areas around Iceland and the Barents Sea. The largest individual on record was 6 feet (1.8 m) long and weighed 211 lb (96 kg), however usually the cod is between 24 inches (61 cm) and 4 feet (1.2 m) long, and weighs 88 lb (40 kg).
List of diseases and parasites in cod
Cod and related species in the family Gadidae are susceptible to a variety of diseases and parasites. "Lernaeocera branchialis", the "cod worm", is a copepod that infects gadoids. The first host used by cod worm is a flatfish or lumpsucker, which it captures with grasping hooks at the front of its body. It penetrates the lumpsucker with a thin filament which it uses to suck the host's blood. The nourished cod worm then mates with another one on the lumpsucker. The female worm, with her now fertilized eggs, then finds a cod, or a cod-like fish, such as a haddock or whiting. There, the worm clings to the gills while it metamorphoses into a plump, sinusoidal, wormlike body, with a coiled mass of egg strings at the rear.
Gadidae
The Gadidae are a family of marine fish, included in the order Gadiformes, known as the cods, codfishes or true cods. It contains several commercially important fishes, including the cod, haddock, whiting, and pollock. Most gadid species are found in temperate waters of the Northern Hemisphere, but several range into subtropical, Subarctic and Arctic oceans, and a single (southern blue whiting) is found in the Southern Hemisphere. They are generally medium-sized fish, and are distinguished by the presence of three dorsal fins on the back and two anal fins on the underside. Most species have barbels on their chins, which they use while browsing on the sea floor.
Guttigadus globosus
Guttigadus globosus, the tadpole cod, is a deepwater fish found in the oceanic islands off New Zealand and in the mid South Atlantic at depths ranging from 1200 to 1600 m.   The tadpole cod is a member of the family Moridae, the morid cods, related to the true cods (of genus "Gadus", family Gadidae). Like the familiar Atlantic cod, it has small whiskers (barbels) on its mouth. Specimens have been measured up to 18 cm. It has no commercial value, and is not currently believed to be endangered. Not much is known about this species, being discovered in 1986. The tadpole cod is distinct from the tadpole fish, "Raniceps raninus".
Arctogadus glacialis
Arctogadus glacialis, known also with ambiguous common names Arctic cod and polar cod, is an Arctic species of fish in the cod family Gadidae, related to the true cod (genus "Gadus"). "Arctogadus glacialis" is found in icy water. They grow to about 30 cm long, and are favorite food of narwhals and other arctic whales. The common names "Arctic cod" and "polar cod" can refer to either "Arctogadus glacialis" or "Boreogadus saida", and "Arctic cod" may also refer to "Eleginus nawaga". Another Arctic gadid, the East Siberian cod ("Arctogadus borisovi"), was until recently considered the closest relative of "A. glacialis".
1_Apprentice
I like Cod but only eat Wild Caught Cod. I prefer to eat fish that is not farm raised due to the pesticides in the food.