Black halibut
| Black halibut | ||||||||||||
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Black halibut ( Reinhardtius hippoglossoides ) |
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| Reinhardtius hippoglossoides | ||||||||||||
| ( Walbaum , 1792) |
The black halibut ( Reinhardtius hippoglossoides ) is a large flatfish that lives in the cold seas of the northern hemisphere. Its occurrence in the Atlantic extends from the north of Ireland via Scotland , the Faroe Islands and Iceland to the south of Greenland , on to the coast of Labrador and around Newfoundland to New Jersey . He also lives along the coast of Norway to Spitzbergen and the southern Barents Sea , as well as in the northern Pacific from the Japanese Sea to the Chukchi Sea , near the Aleutian Islands and along the Alaskan coast to Baja California .
features
The black halibut has an elongated, asymmetrical, laterally strongly flattened body. The mouth is large and reaches below the right eye. The dorsal fin begins behind the left eye. The lateral line organ is almost straight, the scales smooth. It is usually 80 to 120 centimeters long.
Fin formula : dorsal 83–108, anal 62–79
Way of life
The black halibut lives on soft soils at depths of 200 to 1500 meters, at temperatures of −1.5 to 4.5 ° C. The fry are often pelagic , i.e. H. in open water. It feeds on bottom-dwelling invertebrates and fish, including eel mother species , redfish, and capelin .
Reproduction
The fish spawn in open water in winter at depths of 800 to 1200 meters. The eggs are pelagic and 4 mm in diameter. The hatching larvae are about 10 to 15 mm long. With a length of 6 to 8 centimeters, the initially pelagic larvae move on to soil life and, as they grow, move to ever greater depths. The males become sexually mature after seven to eight years, with a length of 55 to 65 centimeters. The females need nine to eleven years for this and are then 65 to 80 centimeters long.
use
The edible fish is caught with longlines and trawls , mainly in Iceland, western Greenland and northern Norway .
literature
- Bent J. Muus, Jørgen G. Nielsen: The marine fish of Europe in the North Sea, Baltic Sea and Atlantic. Kosmos, Stuttgart 1999, ISBN 3-440-07804-3 .
Web links
- Black halibut on Fishbase.org (English)