Actinopterygii (peixes com raios nas barbatanas)
(Salmons) > Salmonidae
(Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335). More on author: Gmelin.
Environment: milieu / climate zone / depth range / distribution range
; marinhas; Água doce; estuarina demersal; anádromo (Ref. 51243). Polar; 71°N - 44°N, 5°W - 133°W
Arctic Ocean basin, from Finland (lapland) to eastern Siberia, Alaska, and Canada eastward to Mackenzie drainage. Appendix III of the Bern Convention (protected fauna). Belongs to Coregonus clupeaformis complex (Ref. 27547).
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm ?, range 17 - ? cm
Max length : 50.0 cm SL macho/indeterminado; (Ref. 59043); common length : 32.8 cm TL macho/indeterminado; (Ref. 12193); idade máx. registrada: 14 anos (Ref. 12193)
Espinhos dorsais (total): 0; Raios dorsais (total): 11-13; Espinhos anais 0; Raios anais : 10 - 14; Vértebras: 58 - 63. Distinguished by the gill rakers that are longer than 20% of the interorbital width, 19 to 25 gill rakers (with modal counts of 22 or 23), and a pronounced hump behind the head in adults (Ref. 27547). Adipose fin well developed, often larger in males; axillary process present in pelvic fins (Ref. 27547). Dark brown to midnight blue above fading to silver on sides and wide beneath; no parr marks in young (Ref. 27547).
Inhabits coastal waters near shore (Ref. 5723), lower reaches of rivers with slow current, large lakes with tributaries, floodplain lakes, deltas and estuaries, brackish waters (Ref. 59043). Migrates up to more than 1,200 km inland for spawning (Ref. 5723). Overwinters near river mouths (Ref. 5723). There are non-migratory freshwater populations. Adults feed mostly on mollusks, crustaceans and chironomid larvae (Ref. 28219).
Upstream spawning migrations may be extensive but some populations seldom venture far upstream and still others may never go to sea at all (Ref. 593). Mature adults migrate upstream as early as June to spawn in October. It is assumed that the young hatch in late winter and spring, subsequently moving downstream, to return as mature adults 4 to 6 years later (Ref. 27547).
Kottelat, M., 1997. European freshwater fishes. Biologia 52, Suppl. 5:1-271. (Ref. 13696)
Status na Lista Vermelha da UICN (Ref. 120744)
CITES (Ref. 118484)
Ameaça para os humanos
Uso pelos humanos
Pescarias: espécies comerciais; Aquacultura: espécies comerciais
ReferênciasAquaculturaPerfil para aquaculturaEstirpesGenéticaFrequências alélicasHereditariedadeDoençasProcessamentoConversão de massa
Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00333 - 0.00907), b=3.24 (3.10 - 3.38), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Nível Trófico (Ref. 69278
): 3.3 ±0.2 se; Based on diet studies.
Resiliência (Ref. 120179
): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tm=3-14; tmax=14; Fec=8,000).
Vulnerabilidade (Ref. 59153
): High vulnerability (64 of 100) .