Arctic char
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The Arctic char or Arctic charr is a cold-water fish in the family Salmonidae, native to alpine lakes, as well as Arctic and subarctic coastal waters in the Holarctic. It is the world's most northerly
Salvelinus alpinus 311639131
Röding, Iduns kokbok
"Sunapee trout"
"Dwarf" Arctic char in Germany
Kype
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A kype is a hook-like appendage that develops at the distal tip of the lower jaw in some male salmonids prior to the spawning season. The structure usually develops in the weeks prior to, and during,
Arctic char
…with most salmonids, vast differences in colouration and body shape occur between sexually mature males and females. Males develop hooked jaws known as kypes and take on a brilliant red colour. Females remain fairly silver. Males are polygamous in sexual nature each season. They will circumambulate the females…
The kype is the hook on the lower jaw which some salmonids develop before the breeding season.
A large male arctic char (Salvelinus alpinus) in spawning condition with a clearly visible kype
Sockeye salmon (Oncorhynchus nerka) Female (above) and male in mating condition. Note that the male has a kype, enlarged snout, humped back and deeper, more extensive colouration.