Haddock

The haddock (Melanogrammus aeglefinus) is a salt water fish, found in the North Atlantic Ocean and associated seas.

The haddock is easily recognized by a black lateral line running along its white side (not to be confused with pollock which has the reverse, i.e., white line on black side) and a distinctive dark blotch above the pectoral fin, often described as a "thumbprint" or even the "Devil's thumbprint" or "St. Peter's mark".

Haddock is most commonly found at depths of 40 to 133 m (131 to 436 ft), but has a range as deep as 300 m (980 ft). It thrives in temperatures of 2 to 10 °C (36 to 50 °F). Juveniles prefer shallower waters and larger adults deeper water. Generally, adult haddock do not engage in long migratory behaviour as do the younger fish, but seasonal movements have been known to occur across all ages. Haddock feed primarily on small invertebrates, although larger members of the species may occasionally consume fish.

Haddock range in size between 38 to 69 centimeters in length and 0.9 to 1.8 kilograms in weight. Growth rates of haddock have changed significantly over the past 30 to 40 years. Presently, growth is more rapid, with haddock reaching their adult size much earlier than previously noted. However, the degree to which these younger fish contribute to reproductive success of the population is unknown. Growth rates of haddock, however, had slowed in recent years. Some evidence indicates it may be the result of an exceptionally large year class in 2003.Spawning occurs between January and June, peaking during late March and early April. The most important spawning grounds are in the waters off middle Norway, near southwest Iceland, and Georges Bank. An average-sized female produces approximately 850,000 eggs, and larger females are capable of producing up to 3 million eggs each year.

Haddock (disambiguation)

Haddock is a food fish.

Haddock may also refer to:

People

Real

See Haddock (surname) for the origin of the name and a list of people with the name

Fictional

Places

Other

Haddock (software)

Haddock is a free, portablecommand-line program documentation generator for Haskell. It is influenced by IDoc , HDoc , and Doxygen. It produces hyperlinked HTML files from annotated Haskell (the documentation is embedded in comments) source files, with additional information extracted from type annotations; it supports only partially generating documentation in SGML. It is often used in conjunction with darcs and Cabal. It is dependent on GHC, using a modified form of the HsParser (written in Happy) parser for Haskell included in GHC. Its lightweight markup is based on IDoc's. Haddock is contained in the Haskell Platform.

It is used by the GHC, Gtk2Hs and HTk projects, as well as XMonad and Yi.

Here is an example of Haddock markup:

References