The Atlantic Halibut is
by far the largest flatfish found around the British Isles, and the largest
in all of the oceans.
Dark brown on upper surface.
Right-eyed Flounder (like
the Plaice, unlike the Sole).
The lateral line is strongly
curved unlike Reinhardstius hippoglossoides.
Continuous dorsal fin has
longer rays in the centre.
A similar and slightly smaller
and slimmer species found in the Pacific Ocean is known as Hippoglossus
The Greenland Halibut, Reinhardstius
hippoglossoides, is a different smaller species that is caught in commercial
quantities off Iceland.
Matures at about 10 years at a length of about 100 cm. (Maturity size and
age varies in different areas).
Winter spawner on the sea
bed at depths of 300-1,000 metres, usually about 700 metres.
2 million + large eggs.
Metamorphosis of larvae
to flatfish shape at a length of approx. 23 mm (Russell).
Usually at depths of 100 metres and below. Seas of this depth are only
found off the western coasts of Ireland and Scotland. However, the young
fish spend their lives inshore in shallower water at depths of around 30
metres for between 2 and 4 years. (Sussex
This fish is not confined
to the sea bottom. One western Atlantic fish has been recorded travelling
a distance of 2600 km over a 7 year period.
Temperature range 2.5°
C - 8° C.
Active mid-water and bottom feeder over depths of between 100-2,000 metres.
Fish, squids of many species, including Redfish, Capelin, Haddock, Cod
North Atlantic coasts in cold water (Arctic-Boreal fauna) south Spitzbergen
(Svalbard) - Ireland, Iceland, southern Greenland-Newfoundland and Chesapeake
Bay (USA). Formerly plentiful in Massuchusetts Bay.
A 39.25 stone (550 lb)
(=250 kg) Halibut caught by Arthur D. Campbell (d.
2006) at the East Horns Iceland on 18th
Fish landed in Aberdeen,
Scotland by the Ben Cairn trawler.
A massive two metre long
Atlantic Halibut, Hippoglossus hippoglossus, was caught by
fishermen and brought into Aberdeen in August 1998. It weighed 135 kg (298
Although in the past Halibut up to 2.5 metres long were reported, these
fish no longer get the opportunity to attain this size. They are caught
before they grow to their maximum size.
The largest fish caught
on rod and line from a boat in British seas weighed 106 kg (234 lb)
and was caught by C. Booth off Dunnet Head, north Scotland, in 1979.
a fish of about 232 kg (511 lb) was
landed by commercial fishermen at Grimsby.
Information on this Fish (Link)
The World Angling Record
for Halibut is from Norwegian seas.The largest
caught on rod and line from a boat in Norway weighed 161.2 kg and was caught
at Valevågsbråtet the 20th of October 1997.
The biggest Atlantic Halibut
caught off Iceland by commercial fishermen was 3.65 m long and weighed
The Halibut is found on
both sides of the North Atlantic Ocean and until recently the largest specimen
caught on rod and line was off the United States and weighed 115.8 kg (255
father caught a 195 kg (428 lb) Halibut off the south-west coast
of Nova Scotia, Canada, in the late 1960's. I have also caught a couple
over 136 kg (300 lb), in the deep water in the middle of the bay
of Fundy (Nova Scotia). These fish were caught by otter trawling.
W. Theriault EMail: firstname.lastname@example.org
Information Credits at Halibut
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Information wanted: Please
send any records of this fish, with location, date, who discovered it,
how it was identified, prevalence, research into fish farming, food of
juveniles, growth rates, diet, specimen fish, juvenile fish in shallow
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Project EMail Glaucus@hotmail.com.