Salvelinus thingvallensis és una espècie de peix de la família dels salmònids i de l'ordre dels salmoniformes.
Menja principalment caragols i, en menor grau, insectes bentònics.[4]
Viu a zones d'aigües dolces i de clima polar (65°N-64°N, 22°W-20°W).[5]
Salvelinus thingvallensis és una espècie de peix de la família dels salmònids i de l'ordre dels salmoniformes.
Salvelinus thingvallensis is a cold-water fish in the family Salmonidae and one of the few vertebrate species exclusively endemic to Iceland.[1] [2]
Its binomial species name commemorates the Icelandic lake Þingvallavatn which includes the limited range in which the fish is found.[3] Salvelinus thingvallensis was originally described by the Icelandic icthyologist Bjarni Sæmundsson in 1909.[4] According to the most recent IUCN assessment in 2008, the species is mostly nocturnal and hides between stones during day. Salvelinus thingvallensis is confirmed to live up to 17 years with first spawning usually occurring at 2–4 years of age in October or November. Salvelinus thingvallensis is documented to feed predominately on snails and less frequently on benthic insects.[5]
The species is recognized by parr marks (dark vertical bars) in adults with a dark brown flank and irregular golden or yellow spots. The belly is beige to yellow in color with blackish markings often seen on throat. Spawning fish appear similar to non-breeding individuals. The pectoral fins are black, while other fins are beige. The caudal and dorsal fins include pale spots. The snout is blunt and rounded with an equal diameter to the eye. The mouth is subinferior, with a projecting upper jaw.[6]
Salvelinus thingvallensis is a cold-water fish in the family Salmonidae and one of the few vertebrate species exclusively endemic to Iceland.
Its binomial species name commemorates the Icelandic lake Þingvallavatn which includes the limited range in which the fish is found. Salvelinus thingvallensis was originally described by the Icelandic icthyologist Bjarni Sæmundsson in 1909. According to the most recent IUCN assessment in 2008, the species is mostly nocturnal and hides between stones during day. Salvelinus thingvallensis is confirmed to live up to 17 years with first spawning usually occurring at 2–4 years of age in October or November. Salvelinus thingvallensis is documented to feed predominately on snails and less frequently on benthic insects.
Salvelinus thingvallensis es una especie de pez de la familia Salmonidae en el orden de los Salmoniformes.
Come principalmente caracoles y, en menor grado, insectos bentónicos
Vive en zonas de aguas dulces y de clima polar (65 ° N-64 ° N, 22 ° W-20 ° W).[2]
Se encuentra en Islandia.
Salvelinus thingvallensis es una especie de pez de la familia Salmonidae en el orden de los Salmoniformes.
Salvelinus thingvallensis Salvelinus generoko animalia da. Arrainen barruko Salmonidae familian sailkatzen da.
Salvelinus thingvallensis Salvelinus generoko animalia da. Arrainen barruko Salmonidae familian sailkatzen da.
Salvelinus thingvallensis is een straalvinnige vissensoort uit de familie van de zalmen (Salmonidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1908 door Saemundsson.
Bronnen, noten en/of referenties
冰島紅點鮭，為輻鰭魚綱鮭形目鮭科的其中一種，為溫帶淡水魚，分布於歐洲冰島Thingvalla湖流域，體長可達24公分，棲息在底中層水域，以蝸牛、昆蟲等為食，生活習性不明。
