Oncorhynchus keta, Chum salmon : fisheries, aquaculture, gamefish, aquarium

Oncorhynchus keta (Walbaum, 1792)

Chum salmon
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Oncorhynchus keta   AquaMaps   Data sources: GBIF OBIS
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Image of Oncorhynchus keta (Chum salmon)
Oncorhynchus keta
Male Foto de Keeley, E.R.

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

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335).
More on author: Walbaum.

Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología

marino; agua dulce; salobre bentopelágico; anadromo (Ref. 132363); rango de profundidad 0 - 250 m (Ref. 50550), usually ? - 61 m (Ref. 96339). Temperate; 0°C - 24°C (Ref. 35682); 67°N - 24°N, 130°E - 110°W (Ref. 117423)

Distribución Territorios | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

North Pacific: Korea , Japan, Okhotsk and Bering Sea (Ref. 1998), Arctic Alaska south to San Diego, California, USA. Asia: Iran (Ref. 39702).

Longitud en la primera madurez / Tamaño / Peso / Edad

Madurez: Lm 70.0  range ? - ? cm
Max length : 100.0 cm FL macho / no sexado; (Ref. 559); common length : 58.0 cm TL macho / no sexado; (Ref. 3561); peso máximo publicado: 18.1 kg (Ref. 56631); edad máxima reportada: 7 años (Ref. 1998)

Descripción breve Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 10 - 14; Espinas anales: 0; Radios blandos anales: 13 - 17; Vértebra: 59 - 71. Distinguished by the lack of distinct black spots on the back and tail and by the presence of 18 to 28 short, stout, smooth gill rakers on the first arch (Ref. 27547). Pelvic fins with axillary process; caudal truncate to slightly emarginate (Ref. 27547). Large individuals are steel-blue dorsally, with speckles of black; silver on the sides; silvery to white ventrally. Males have tinges of black on the tips of its caudal, anal and pectoral fins. Spawning males are dark olive to black dorsally; grey-red with green vertical bars on the sides; dark grey ventrally; anal and pelvic fins with white tips. Spawning females resemble spawning males but less distinctly marked.
Body shape (shape guide): fusiform / normal; Cross section: compressed.

Biología     Glosario (por ej. epibenthic)

Inhabits ocean and coastal streams (Ref. 86798). Migrating fry form schools in estuaries, remain close to shore for a few months and finally disperse to enter the sea (Ref. 1998). Epipelagic (Ref. 58426). Juveniles and adults feed mainly on copepods, tunicates and euphausiids but also on pteropods, squid and small fishes (Ref. 1998). Adults cease feeding in freshwater (Ref. 1998). Males and females die after spawning. The catch is mostly canned but also sold fresh, dried-salted, smoked, and frozen. Eaten steamed, fried, broiled, boiled, microwaved, and baked (Ref. 9988). Utilized for caviar.

Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Enters freshwater during advanced stage of sexual development and spawning occurs almost immediately (Ref. 1998). Spawning occurs at depths of ~3 meters, current speeds of ~20cm/sec. near the head waters over sand and pebbles at 4-11° C water temperature. At spawning time the female excavates a hole of around 1 meter diameter and 50 cm depth before spawning can occur (Ref. 12218). Nest building is done by the female by lying on one side and lashing its tail to displace the sand and silt on the river bed. The pair then settles in the nest, mouths gape, and with rapid vibration of the pair, eggs and milt are released. The female then covers the nest. Males are aggressive and may spawn with different females; females likewise may spawn with other males and therefore builds different nests. Adults die after a week (Ref. 1998). A fish spawns 700-7,000 eggs in two to three egg releases. Eggs are ~300-3,500 per spawn. Egg size is ~6.7 mm, water temp. is 8-10°C at 60 days before hatching. Larva size is around 16 mm. Come springtime the juveniles go to the ocean and come back 3-4 years later to their exact birthplace. This fish reaches maturity in 2-4 years. Larvae are found around the spawning site, Juveniles are found around the coast. Juveniles migrate to the ocean at ~27-45 mm during February at water temperatures around 4° C (Ref. 12218). Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).

Referencia principal Suba sus referencias | Referencias | Coordinador | Colaboradores

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 23 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Harmless





Usos humanos

Pesquerías: muy comercial; Acuicultura: comercial; pesca deportiva: si; Acuario: Acuarios públicos
FAO - Sistemas de acuicultura: producción; pesquerías: desembarques, perfil de la especie; Publication: search | FishSource | Sea Around Us

Más información

Ecología Trófica
Alimentos (presas)
Composición de la dieta
consumo de alimento
Raciones de comida
Despredadores
Ecología
Ecología
Dinámica de la población
Coeficiente del crecimiento para
Edades / tallas máximas
Longitud-peso rel.
Longitud-longitud rel.
Longitud-frecuencias
Conversión de masas
Reclutamiento
Abundancia
Ciclo de vida
Reproducción
Madurez
Madurez/Gills rel.
Fecundidad
Puesta
Agregaciones de desove
Huevos
Desarrollo de los huevos
Larva
Dinámica larvaria
Anatomía
Superficie branquial
Cerebro
Otolito
Fisiología
Composición corporal
Nutrientes
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Pigmentos visuales
Sonido de peces
Enfermedades y parásitos
Toxicidad (CL50)
Genética
Genoma
Genética
Heterocigosidad
heritabilidad
Diversidad genética
Relacionados con el ser humano
Sistemas de acuicultura
Perfiles de acuicultura
Razas
Ciguatera cases
Sellos, monedas, varios
Divulgación
Colaboradores
Referencias
Referencias

Herramientas

Informes especiales

Descargar XML

Fuentes de Internet

Estimaciones basadas en modelos

Temperatura preferida (Referencia 123201): 1.1 - 8.3, mean 3.3 °C (based on 192 cells).
Índice de diversidad filogenética (Referencia 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00741 - 0.02693), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nivel trófico (Referencia 69278):  3.7   ±0.2 se; based on diet studies.
Resiliencia (Referencia 120179):  Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.27-0.45; tm=2-5; tmax=6).
Prior r = 0.32, 95% CL = 0.21 - 0.48, Based on 8 full stock assessments.
Vulnerabilidad pesquera (Ref. 59153):  Moderate to high vulnerability (49 of 100). 🛈
Vulnerabilidad climática (Ref. 125649):  High to very high vulnerability (71 of 100). 🛈
Categoría de precios (Ref. 80766):   Medium.
Nutrientes (Ref. 124155):  Calcium = 15.6 [4.4, 41.3] mg/100g; Iron = 0.337 [0.168, 0.758] mg/100g; Protein = 18.4 [17.2, 19.5] %; Omega3 = 1.71 [0.78, 3.77] g/100g; Selenium = 110 [32, 369] μg/100g; VitaminA = 13.3 [4.6, 41.2] μg/100g; Zinc = 0.424 [0.266, 0.821] mg/100g (wet weight);