Thymallus arcticus, Arctic grayling : fisheries, gamefish

Thymallus arcticus (Pallas, 1776)

Arctic grayling
Hochladen Photos und videos
 Bilder | Google Bild
Image of Thymallus arcticus (Arctic grayling)
Thymallus arcticus
Photo von Keeley, E.R.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Thymallinae
Etymology: Thymallus: Greek, thymallos, -ou = a kind of fish similar to salmon (Ref. 45335); arcticus: arcticus meaning of the arctic (Ref. 1998).
More on author: Pallas.

Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie

; süßwasser benthopelagisch; potamodrom (Ref. 126106); tiefenbereich 30 - ? m (Ref. 5723). Temperate; 71°N - 44°N

Verbreitung Territorien | FAO Gebiete | Ökosysteme | Vorkommen | Punkt Karte | Einführungen | Faunafri

North America: widespread in Arctic drainages from Hudson Bay, Canada to Alaska and in Arctic and Pacific drainages to central Alberta and British Columbia in Canada; upper Missouri River drainage in Montana, USA. Formerly in Great Lakes basin in Michigan, USA (Ref. 5723). Arctic Ocean basin in Siberia from Ob to Yenisei drainages and in Europe in some tributaries of Pechora (Usa, Kosyu, Kozhim), Korotaikha and Kara (Ref. 59043).

Länge bei der ersten Reifung / Größe / Gewicht / Alter

Geschlechtsreife: Lm 24.5, range 23 - 26 cm
Max length : 76.0 cm TL Männchen/unbestimmt; (Ref. 5723); common length : 34.3 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Gewicht: 3.8 kg (Ref. 40637); max. veröff. Alter: 18 Jahre (Ref. 33969)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 17 - 25; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 11 - 15; Wirbelzahl: 58 - 62. Distinguished by its greatly enlarged dorsal fin and its small mouth, which has fine teeth on both jaws (Ref. 27547). Dorsal greatly enlarged in adults (especially males), reaching adipose fin when depressed, but is shorter in females; pelvic fins rather long, reach anal fin in adult males, but not in females; lower lobe of caudal often longer than upper (Ref. 27547). A strikingly colored fish, the dorsal surface is dark purple, or blue black to blue gray, the sides gray to dark blue with pinkish iridescence, the ventral surface gray to white (Ref. 1998). Scattered dark spots on sides, these being more numerous on the young; a dark longitudinal stripe along lower sides between pectoral and pelvic fins; dorsal fin dark with narrow purple edge (rows of reddish to orange or purple to green spots on body of fin); pelvic fins dark with irregular diagonal orange-yellow stripes; adipose, dorsal, anal, caudal and pectorals dusky to dark (Ref. 27547).
Body shape (shape guide): fusiform / normal; Cross section: compressed.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Adults inhabit open water of clear, cold, medium to large rivers and lakes. They enter rocky creeks to spawn (Ref. 5723). They occur in piedmont and montane cold streams, rivers and lakes with high oxygen concentrations (Ref. 59043). They form schools in moderate numbers (Ref. 9988). Young feed on zooplankton with a gradual shift to immature insects; adults feed mainly on surface insects but also take in fishes, fish eggs, lemmings, and planktonic crustaceans (Ref. 1998). Spawning takes place in montane streams with heavy current on shallows with rock-gravel bottom (Ref. 59043). Utilized fresh and can be fried, broiled, boiled, and baked (Ref. 9988).

Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven

Spawning adults move into tributaries and males establish territories. At spawning, the male follows a female, courting her with displays of his dorsal fin. He then drifts over beside her and curves his extended dorsal fin over the female. The pair vibrates and release eggs and milt. No redd is constructed, but the vibrations of the tails during the spawning act stirs up the substrate and produce a slight depression (Ref. 28876, 28879, 28880, 28881, 28882). A female may spawn only once, or several times in different areas (Ref. 1998). After spawning, adults establish summer territories in pools generally farther upstream from the spawning site, majority moving downstream in mid-September (Ref. 28885, 28886).

Hauptreferenz Laden Sie Ihre Referenzen hoch | Referenzen | Koordinator | Partner

McClanes, A.J. (ed.), 1974. Field guide to freshwater fishes of North America. Holt, Rinehart and Winston, New York. 212 p. (Ref. 3221)

IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))

  nicht bedroht (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja
FAO - Publication: search | FishSource |

Mehr Information

Trophische Ökologie
Lebensmittel (Beutetiere)
Nahrungszusammensetzung
Nahrungsaufnahme
Lebensmittelrationen
Räuber
Ökologie
Ökologie
Populationsdynamik
Wachstumsparameter
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
Rekrutierung
Dichte
Lebenszyklus
Fortpflanzung
Geschlechtsreife
Reifung/Kiemen rel.
Fruchtbarkeit
Ablaichen
Laichaggregationen
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Verbreitung
Territorien
FAO Gebiete
Ökosysteme
Vorkommen
Einführungen
BRUVS - Videos
Anatomie
Kiemenoberfläche
Gehirn
Otolith
Physiologie
Körperliche Zusammensetzung
Nährstoffe
Sauerstoffverbrauch
Schwimmart
Schwimmgeschwindigkeit
Visuelle Pigmente
Fischgeräusche
Krankheiten und Parasiten
Toxizität (LC50s)
Genetik
Genom
Genetik
Heterozygotie
Vererbbarkeit
Genetische Vielfalt
Menschenbezogen
Aquakultur-Systeme
Aquakultur Profile
Zuchtlinien
Ciguatera-Fälle
Briefmarken, Münzen, Verschiedenes.
Aufsuchen
Partner
Taxonomie
Namen
Synonyme
Morphologie
Morphometrie
Bilder
Referenzen
Referenzen

Tools

Bio-Quiz | E-Book | Feldführer | Bestimmungsschlüssel | Längenhäufigkeits Tool | Lebensdaten Tool | Punkt Karte | Catch-MSY |

Zusatzinformationen

Aquarium Hälterung suchen | Art Datenblatt suchen | Aquakultur Datenblatt suchen

Download XML

Zusammenfassung | Punktdaten | Namen | Photos

Internet Quellen

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoologischer Rekord

Schätzungen auf der Grundlage von Modellen

Phylogenetischer Diversitätsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00578 - 0.01143), b=3.09 (3.00 - 3.18), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophische Ebene (Ref. 69278):  3.3   ±0.2 se; based on diet studies.
Generation time: 7.3 (5.5 - 9.2) years. Estimated as median ln(3)/K based on 10 growth studies.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.10-0.23; tm=2-6; tmax=18; Fec=416).
Anfälligkeit der Fischerei (Ref. 59153):  Moderate to high vulnerability (51 of 100). 🛈
Preiskategorie (Ref. 80766):   Very high.
Nährstoffe (Ref. 124155):  Calcium = 30.1 [7.9, 61.1] mg/100g; Iron = 0.678 [0.213, 1.553] mg/100g; Protein = 18.6 [16.8, 20.3] %; Omega3 = 1.91 [0.63, 6.48] g/100g; Selenium = 59.2 [22.5, 181.7] μg/100g; VitaminA = 23.2 [6.6, 69.7] μg/100g; Zinc = 0.709 [0.384, 1.339] mg/100g (wet weight); based on nutrient studies.