The 'haddock' or 'offshore hake' is a marine
fish distributed on both sides of the
North Atlantic. Haddock is a popular food fish, widely fished commercially.
The haddock is easily recognised by a black
lateral line running along its white side, not to be confused with
pollock which has the reverse, ie 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".
[1]
Haddock is most commonly found at depths of 40 to 133 m, but has a range as deep as 300 m. 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 behavior 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.
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 Georges Bank haddock, however, have slowed in recent years. There is evidence that this is the result of an exceptionally large year class in 2003.
[2] 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.
Fisheries
Reaching sizes up to 1.1 m, haddock is fished for year-round. Some of the methods used are Danish
seine nets, trawlers, long lines, fishing nets. The commercial catch of haddock in
North America had declined sharply in recent years but is now recovering with recruitment rates running around where they historically were from the 1930s to 1960s.
[3]
Cuisine
Haddock is a very popular food fish, sold fresh, smoked, frozen, dried, or to a small extent canned.
Fresh haddock has a fine white flesh and can be cooked in the same ways as
cod. Freshness of a haddock fillet can be determined by how well it holds together, as a fresh one will be firm; also fillets should be translucent, while older fillets turn a chalky hue. Young, fresh haddock and cod fillets are often sold as
scrod in
Boston, Massachusetts; this refers to the size of the fish which have a variety of sizes, i.e. scrod, markets, and cows.
Unlike the related
cod, it does not
salt well, so it is often preserved by
drying and
smoking. One form of smoked haddock is '
Finnan haddie', named for the fishing village of
Finnan or Findon, Scotland, where it was originally cold-smoked over
peat. Finnan haddie is often served
poached in milk for
breakfast. The town of
Arbroath on the east coast of Scotland produces the
Arbroath Smokie. This is a hot-smoked haddock which requires no further cooking before eating. Haddock is the predominant fish of choice in Scotland in a
fish supper.
Haddock is also the main ingredient of Norwegian fishballs (fiskeboller).
The main
nutritional value of haddock is as an excellent source of
protein. It also contains a good deal of
vitamin B12,
pyridoxine, and
selenium. The fish also contains a healthy balance of
sodium and
potassium. Overall the meat is extremely lean.
See also
References
1. http://www.icelandic.com/ss-haddock.cfm
2. http://www.nefsc.noaa.gov/nefsc/publications/crd/crd0216/
3. http://www.nefsc.noaa.gov/nefsc/publications/crd/crd0611/
Sources
★ Listed as Vulnerable (VU A1d+2d v2.3)
★
★
★ Alan Davidson, ''North Atlantic Seafood'', 1979, ISBN 0-670-51524-8.
External links
★
Species factsheet on haddock from the UK Sea Fish Industry Authority (PDF, 2MB)