Coregonus nasus, Broad whitefish : fisheries, gamefish

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Coregonus nasus (Pallas, 1776)

Broad whitefish
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Coregonus nasus
Male picture by Kline, T.

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335);  nasus: nasus refering to shape of nose (Ref. 1998).
More on author: Pallas.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce; salobre; anadromo (Ref. 51243). Polar; 73°N - 59°N, 46°E - 102°W

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Eurasia and North America: all drainages of Arctic Ocean from Volonga and Pechora to Alaska.

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 71.0 cm TL macho / no sexado; (Ref. 96339); common length : 46.0 cm TL macho / no sexado; (Ref. 1998); peso máximo publicado: 16.0 kg (Ref. 1998); edad máxima reportada: 15 años (Ref. 59043)

Short description Morfología | Morfometría

Espinas dorsales (total): 0; Radios blandos dorsales (total): 10-13; Espinas anales 0; Radios blandos anales: 11 - 14; Vértebra: 60 - 65. Distinguished by its short gill rakers, which are less than one-fifth as long as the interorbital width, and the rounded to flat profile of the head (Ref. 27547). Adipose fin fairly large; axillary process present in the pelvic fins (Ref. 27547). Olive-brown to nearly black on back; sides silvery, often with a gray cast; belly white to yellowish; fins usually rather gray in adults, pale in young (Ref. 27547).

Biología     Glosario (por ej. epibenthic)

Nerito-pelagic (Ref. 58426). Lowland river and lakes (Ref. 59043) but most frequently in streams (Ref. 5723). Lacustrine and estuarine anadromous forms exist (Ref. 593). Alevins and juveniles feed on zooplankton, adults on benthos, mainly chironomid larvae and molluscs (Ref. 1998, 59043). Males reproduce for the first time in 4-8 years, females at 5-9. Adults start upstream migration in late July - August and reach spawning sites by October - November and spawn in stretches with swift current and sand-pebble bottom, often under ice. Spawning lasts 5-7 days and fish leave spawning site soon after, migrating downstream to overwinter in deeper places of lower stretches of rivers together with older juveniles. In spring, alevins drift from spawning sites downstream with flood-water and forage in floodplain lakes and oxbows where they remain until end of summer before moving to river or reaching maturity (if lakes are large enough and do not dry out). Widely used for aquaculture in eastern Europe (Ref. 59043). Flesh is highly esteemed (Ref. 1998). Sold fresh, dried, or smoked (Ref. 1998).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Mature adults make upstream spawning migrations beginning as early as June and may extend to September or later (Ref. 28214, 28852, 28855, 28857) and move back downstream after spawning and overwinter in deep parts of the rivers or in estuaries (Ref. 27547). Young hatch in the spring and move downward (Ref. 27547).

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: comercial; pesca deportiva: si
FAO - Publication: search | FishSource | Sea Around Us

Más información

Nombres comunes
Sinónimos
Metabolismo
Despredadores
Ecotoxicología
Reproducción
Madurez
Puesta
Agregación para la puesta
Fecundidad
Huevos
Egg development
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Electrophoreses
heritabilidad
Enfermedades
Procesamiento
Nutrients
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00470 - 0.00613), b=3.22 (3.18 - 3.26), in cm total length, based on LWR estimates for this species (Ref. 93245).
Nivel trófico (Ref. 69278):  3.5   ±0.1 se; based on diet studies.
Generation time: 7.8 (5.4 - 8.9) years. Estimated as median ln(3)/K based on 15 growth studies.
Resiliencia (Ref. 120179):  Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (K=0.10-0.30; tm=7; tmax=15; Fec=10,000).
Prior r = 0.34, 95% CL = 0.22 - 0.51, Based on 2 stock assessments.
Fishing Vulnerability (Ref. 59153):  High vulnerability (65 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 14 [6, 26] mg/100g; Iron = 0.432 [0.202, 0.855] mg/100g; Protein = 18.1 [17.0, 19.3] %; Omega3 = 0.638 [0.254, 1.755] g/100g; Selenium = 12.1 [4.4, 31.1] μg/100g; VitaminA = 7.15 [1.18, 46.59] μg/100g; Zinc = 0.475 [0.354, 0.695] mg/100g (wet weight);