Hippoglossus hippoglossus (Linnaeus, 1758)
Halibut
 |
Hippoglossus hippoglossus are found at depths ranging from 50-2000 m and while generally benthic, are occasionally caught pelagically. Halibut are widely distributed in the study area from the Bay of Biscay north to Iceland, Spitsbergen and the Barents Sea. Spawning takes place from December to April at depths of 300 to 1000 m and temperatures of 5 to 7 °C (Whitehead et al, 1986b).
The halibut is the largest flatfish species known, reaching sizes of about 200 cm. Distinctive features include the concave edge to its tail, a large mouth, and a lateral line with a distinctive curve above the pectoral fin. Colouration of the body is uniformly dark brown or black. Younger specimens tend to be more marbled or spotted with paler marks (Whitehead et al., 1986b).
During the present survey, halibut were observed on the seabed adjacent to the Sula Reef.
Halibut are a valuable commercial species generally caught on long lines (Whitehead et al., 1986b).
There is more information available for this species in FishBase.
Prepared by: Ecological Consultancy Services Ltd www.ecoserve.ie