Cod
Linnaeus named the Atlantic cod Gadus morhua in 1758. This scientific label distinguishes true cod from other fish that share common names but belong to different families. The genus Gadus currently holds three species called cod: the Atlantic cod, the Pacific cod, and the Greenland cod. A fourth member of this genus exists as Alaska pollock, yet it is rarely called cod by consumers. Many unrelated fish carry the word cod in their titles, such as the Murray cod or the rock cod found in New Zealand. These species belong to orders like Perciformes or Scorpaeniformes rather than Gadidae. Market forces often drive these naming conventions, with shrunken stocks leading sellers to market replacements using culinary terms instead of phyletic ones. Some fish like haddock and whiting sit within the same family as true cod, while others like the Antarctic cod belong to the Nototheniidae family.
The Atlantic cod possesses three rounded dorsal fins and two anal fins. Its pelvic fins are small and set under the gill cover near the throat region. A distinct white lateral line runs from the gill slit above the pectoral fin to the base of the tail fin. Adult specimens can reach a maximum length of 200 centimeters and weigh up to 96 kilograms. Spawning occurs between January and April at depths where water temperatures stay between specific ranges. Male cod produce grunting sounds during courtship before pairing with females. Eggs hatch into larvae that grow fourfold in body weight over ten weeks. Young cod eventually move to the seabed to feed on small crustaceans like isopods and crabs. Parasites known as cod worms penetrate the heart's rear bulb of adult fish to extract nutrients from their blood.
Norwegians traveled with dried cod starting around 800 AD to establish markets in southern Europe. The Hanseatic League dominated trade operations by the end of the 14th century using Bergen as its most important port. William Pitt the Elder once called cod British gold while criticizing the Treaty of Paris in Parliament. In 1733, Britain imposed the Molasses Act to control trade between New England and the Caribbean but failed to stop the flow. French merchants eagerly engaged in contraband arrangements with New Englanders to keep the lucrative business alive. The Basques played an important role in the cod trade and allegedly found Canadian fishing banks before Columbus discovered America. Modern quotas for 2006 showed a northwest Atlantic limit of 23,000 tons against a northeast quota of 473,000 tons. Pacific cod currently enjoys strong global demand with total allowable catches reaching 260,000 tons in the Gulf of Alaska.
John Crosbie declared a two-year moratorium on Northern Cod fishing on the 2nd of July 1992. Data revealed that the total cod biomass had collapsed to less than 1% of its normal value. Some 19,000 fishermen and processing plant workers lost their employment following this decision. Nearly 40,000 workers applied for the federal relief program known as TAGS. Abandoned and rusting fishing boats still litter the coasts of Newfoundland today. The four-million ton biomass disappeared within no more than 20 years due to overfishing and government mismanagement. Scientists argue the population will not rebound unless the Fisheries Department lowers yearly quotas to 5,000 tons. As of 2021, growth has remained stagnant since 2017 despite decades of recovery efforts. Local fishermen continue to catch some 12,000 tons annually under exceptions for personal consumption purposes.
Cod liver oil serves as an important source of vitamin A, vitamin D, and omega-3 fatty acids. Young Atlantic cod prepared in strips is called scrod by cooks in the United Kingdom. Atlantic cod remains one of the most common ingredients in fish and chips alongside haddock and plaice. The Sacred Cod of Massachusetts hangs in the state House of Representatives chambers as a wood carving. Clipfish is widely enjoyed in Portugal where people began fishing cod in the 15th century. The soft liver can be tinned and eaten directly from cans. Historical trade networks developed because fishing grounds lay far from population centers requiring sea transport of stockfish over large distances. This commodity shaped national identities across Europe and North America while serving as a staple ingredient in diverse cuisines.
Common questions
When did Linnaeus name the Atlantic cod Gadus morhua?
Linnaeus named the Atlantic cod Gadus morhua in 1758. This scientific label distinguishes true cod from other fish that share common names but belong to different families.
What are the physical characteristics of adult Atlantic cod specimens?
Adult Atlantic cod specimens can reach a maximum length of 200 centimeters and weigh up to 96 kilograms. The species possesses three rounded dorsal fins, two anal fins, and a distinct white lateral line running from the gill slit above the pectoral fin to the base of the tail fin.
Who declared the two-year moratorium on Northern Cod fishing on the 2nd of July 1992?
John Crosbie declared a two-year moratorium on Northern Cod fishing on the 2nd of July 1992. Data revealed that the total cod biomass had collapsed to less than 1% of its normal value following this decision.
Which countries established markets for dried cod starting around 800 AD?
Norwegians traveled with dried cod starting around 800 AD to establish markets in southern Europe. The Hanseatic League dominated trade operations by the end of the 14th century using Bergen as its most important port.
How much did the four-million ton cod biomass disappear within no more than 20 years due to overfishing?
The four-million ton biomass disappeared within no more than 20 years due to overfishing and government mismanagement. As of 2021, growth has remained stagnant since 2017 despite decades of recovery efforts.