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Oncorhynchus keta (Walbaum, 1792)
CHUM SALMON
Life   Vertebrata   Fish   Salmonidae   Oncorhynchus


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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Oncorhynchus+keta&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Oncorhynchus+keta&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Animal

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Number of matches : 1
Query: SELECT * FROM img WHERE ready=1 and taxon like "Oncorhynchus keta%" and (lifeform != "specimen_tag" OR lifeform != "Animal") ORDER BY taxon

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Oncorhynchus keta
Oncorhynchus keta
Chum Salmon
ID: 0000 0000 0202 0039 [detail]
© 1999 Don Getty

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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Oncorhynchus&speciesname=keta ---> http://www.fishbase.org/summary/Oncorhynchus-keta.html
http://www.fishbase.org/summary/Oncorhynchus-keta.html ---> https://www.fishbase.se/summary/Oncorhynchus-keta.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Oncorhynchus keta (Walbaum , 1792)

Chum salmon Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
Reviewed map
Oncorhynchus keta   AquaMaps   Data sources: GBIF OBIS
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Pictures | Videos |     Stamps, Coins Misc. | Google image Image of Oncorhynchus keta (Chum salmon) Oncorhynchus keta
Male picture by Keeley, E.R.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

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

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

Marine; freshwater; brackish; benthopelagic; anadromous (Ref. 51243 ); depth range 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 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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

Length at first maturity / Size / Weight / Age

Maturity: L m 70.0   range ? - ? cm
Max length : 100.0 cm FL male/unsexed; (Ref. 559 ); common length : 58.0 cm TL male/unsexed; (Ref. 3561 ); max. published weight: 15.9 kg (Ref. 40637 ); max. reported age: 7 years (Ref. 1998 )

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 10-14; Anal spines : 0; Anal soft rays : 13 - 17; Vertebrae : 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.

Biology     Glossary (e.g. 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.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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 ).

Main reference Upload your references | References | Coordinator | Collaborators

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 )

IUCN Red List Status (Ref. 120744 )

    Not Evaluated  

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: highly commercial; aquaculture: commercial; gamefish: yes; aquarium: public aquariums FAO(Aquaculture: production ; fisheries: production , species profile ; publication : search ) | FishSource | Sea Around Us

More information

Countries
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Ecology
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Common names
Synonyms
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Ecotoxicology
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Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
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References
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Processing
Mass conversion
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Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
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Gill area
Otoliths
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Tools

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Special reports

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Download XML

Summary page | Point data | Common names | Photos

Internet sources

Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 1.1 - 8.3, mean 3.3 (based on 192 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.01413 (0.00734 - 0.02718), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.7   ±0.2 se; Based on diet studies. Resilience (Ref. 69278 ):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.27-0.45; tm=2-5; tmax=6). Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 7 stock assessments. Vulnerability (Ref. 59153 ):  Moderate to high vulnerability (49 of 100) . Price category (Ref. 80766 ):   Medium .

Entered by Luna, Susan M. Modified by Torres, Armi G. Fish Forum
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