has its habitats in the North Atlantic.
It is a popular food fish, commercially
fished in Iceland, and more common on the household menu than the cod.
It is sold fresh, smoked, frozen, dried, and the British like it as
fish and chips It is related to the cod, a bottom dweller, and
has a black lateral stripe where the cod has a white one. The
saithe/pollock is a similar looking fish, somewhat dark skinned with a
white lateral stripe.
This species is usually found at depths of 40 to 140
m. and as deep as 300 m. It thrives
at 2°-10°C. Juveniles
prefer shallower waters than the mature.
Generally, mature fishes do not
migrate far as do the younger fish, but seasonal movements
occur at all ages. The haddock
feeds primarily on small
invertebtates. Larger ones sometimes consume fish.
Growth rates of haddock have changed significantly
during the last few decades. Now the
haddock matures much earlier than
before. It is, however,
not known to which degree the younger mature fishes contribute to the
reprodution of the population.
The haddock spawns between
January and June, but mainly during March and April. Important
spawning grounds are off the Mid Norway coast, along the west and
south coasts of
Iceland and Georges Bank. The average egg prodution per female
is 850 thousand, but the largest ones produce 3 million eggs annually.
The largest haddock fished in Icelandic waters was 104 cm long and
weighed 11 kg. In 1978 the total catch in the North Atlantic was
1,6 million tonnes, thereof 411.000 in the Barent Sea, 328.000 around
Iceland, 304.000 off the Norwegian coast, and 261.000 in the North