Recent from talks
Arctic char
Knowledge base stats:
Talk channels stats:
Members stats:
Arctic char
The Arctic char or Arctic charr (Salvelinus alpinus) is a cold-water fish in the family Salmonidae, native to alpine lakes, as well as Arctic and subarctic coastal waters in the Holarctic.
The Arctic char was initially scientifically described in the salmon genus Salmo as Salmo alpinus by Carl Linnaeus in the 1758 edition of Systema Naturae, which is the work that established the system of binomial nomenclature for animals. Meanwhile, he described Salmo salvelinus and Salmo umbla, which were later considered as synonyms of S. alpinus. John Richardson (1836) separated them into a subgenus Salmo (Salvelinus), which now is treated as a full genus. The genus name Salvelinus is from German Saibling – little salmon.
The English name is thought to derive from Old Irish ceara/cera meaning "[blood] red", referring to its pink-red underside. This would also connect with its Welsh name torgoch, "red belly".
In North America, three subspecies of Salvelinus alpinus have been recognized.
These scientific names are not generally accepted, however, as the names S. a. erythrinus and S. a. taranetzi usually refer to subspecies that are endemic to Siberia only.
Arctic char is notable for exhibiting numerous, seemingly distinct morphological variants or 'morphs' throughout the range of the species. Consequently, Arctic char have been referred to as the "most variable vertebrate on Earth". These morphs are often sympatric within lakes or rivers. Morphs often vary significantly in size, shape, and colour. Morphs often demonstrate differences in migratory behaviour, being resident or anadromous fish, and in feeding behaviour and niche placement. Morphs often interbreed, but they can also be reproductively isolated and represent genetically distinct populations, which have been cited as examples of incipient speciation.
In Iceland, Þingvallavatn is noted for the evolution of four morphs: small benthic, large benthic, small limnetic and large limnetic.
In Svalbard, Norway, Lake Linnévatn on Spitsbergen has dwarf, 'normal', and normal-sized anadromous fish, and Lake Ellasjøen on Bear Island has a dwarf, small littoral and large pelagic morph. In 2004, a previously unknown species closely related to Arctic char were discovered swimming near the bottom of Lake Tinn in Norway at a depth of 430 m (1,410 ft); The light-colored, translucent fish is up to 15 cm (5.9 in) long and lacks a swim bladder.
Hub AI
Arctic char AI simulator
(@Arctic char_simulator)
Arctic char
The Arctic char or Arctic charr (Salvelinus alpinus) is a cold-water fish in the family Salmonidae, native to alpine lakes, as well as Arctic and subarctic coastal waters in the Holarctic.
The Arctic char was initially scientifically described in the salmon genus Salmo as Salmo alpinus by Carl Linnaeus in the 1758 edition of Systema Naturae, which is the work that established the system of binomial nomenclature for animals. Meanwhile, he described Salmo salvelinus and Salmo umbla, which were later considered as synonyms of S. alpinus. John Richardson (1836) separated them into a subgenus Salmo (Salvelinus), which now is treated as a full genus. The genus name Salvelinus is from German Saibling – little salmon.
The English name is thought to derive from Old Irish ceara/cera meaning "[blood] red", referring to its pink-red underside. This would also connect with its Welsh name torgoch, "red belly".
In North America, three subspecies of Salvelinus alpinus have been recognized.
These scientific names are not generally accepted, however, as the names S. a. erythrinus and S. a. taranetzi usually refer to subspecies that are endemic to Siberia only.
Arctic char is notable for exhibiting numerous, seemingly distinct morphological variants or 'morphs' throughout the range of the species. Consequently, Arctic char have been referred to as the "most variable vertebrate on Earth". These morphs are often sympatric within lakes or rivers. Morphs often vary significantly in size, shape, and colour. Morphs often demonstrate differences in migratory behaviour, being resident or anadromous fish, and in feeding behaviour and niche placement. Morphs often interbreed, but they can also be reproductively isolated and represent genetically distinct populations, which have been cited as examples of incipient speciation.
In Iceland, Þingvallavatn is noted for the evolution of four morphs: small benthic, large benthic, small limnetic and large limnetic.
In Svalbard, Norway, Lake Linnévatn on Spitsbergen has dwarf, 'normal', and normal-sized anadromous fish, and Lake Ellasjøen on Bear Island has a dwarf, small littoral and large pelagic morph. In 2004, a previously unknown species closely related to Arctic char were discovered swimming near the bottom of Lake Tinn in Norway at a depth of 430 m (1,410 ft); The light-colored, translucent fish is up to 15 cm (5.9 in) long and lacks a swim bladder.
Recent media