
Kokanee
Oncorhynchus nerka
- Usual depth5–19 m
- Water temperature4–12 °C
- Best monthsMay
- How commonCommon
Photo credit: (c) Cole Wolf, some rights reserved (CC BY), uploaded by Cole Wolf · CC BY · iNaturalist
About this species
The sockeye salmon, also called red salmon, kokanee salmon, blueback salmon, or simply sockeye, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it. This species is a Pacific salmon that is primarily red in hue during spawning. They can grow up to 84 cm in length and weigh 2.3 to 7 kg (5–15 lb). Juveniles remain in freshwater until they are ready to migrate to the ocean, over distances of up to 1,600 km (1,000 mi). Their diet consists primarily of zooplankton. Sockeye salmon are semelparous, dying after they spawn. Some populations, referred to as kokanee, do not migrate to the ocean and live their entire lives in fresh water.
Text from the Wikipedia article “Sockeye salmon”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 327 records
- February: 204 records
- March: 151 records
- April: 3,310 records
- May: 9,291 records
- June: 5,424 records
- July: 1,536 records
- August: 1,670 records
- September: 2,647 records
- October: 1,720 records
- November: 412 records
- December: 311 records
Depth and water temperature
Depth
Mostly recorded at 5–19 m · Deepest record: 35 m
Water temperature
Recorded in surface water of 4–12 °C
Photos

(c) Aiva Noringseth, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
(c) Spencer Hurt, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Aiva Noringseth, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Matt Muir, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Matt Bowser, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Kokanee, Red salmon, Sockeye salmon, Blue-back, Blueback, blueback salmon, Fraser river salmon, Kennerly's Salmon, Kickininee, kokanee, Kokanee Salmon, Land-locked Sockeye, Little Redfish, Pygmy Salmon, Pygmy Sockeye Salmon, Quinalt, Red Caviar, Redfish, red salmon, Salmon, Salmón, Silver Trout, Sockeye(=red) Salmon, sockeye salmon, Sock-eye salmon, Sockey Salmon, Yank
Names in 6 more languages
- German
- Blaurücken, Blaurückenlachs, Roter Lachs, Rotlachs
- Spanish
- Salmon, Salmón, salmon rojo, Salmón Rojo
- French
- kokani, saumon rouge, Saumon rouge, saumon sockeye
- Japanese
- Benizake, Benizake,Himemasu, ヒメマス, ベニザケ, ベニザケ・ヒメマス, ベニザケ/ヒメマス
- Korean
- 홍연어
- Simplified Chinese
- 紅鉤吻鮭, 紅鮭, 红大马哈鱼
Other scientific names: Hypsifario kennerlyi, Oncorhynchus adonis, Salmo kennerlyi, Salmo nerka, Salmo paucidens
Similar species
Chum salmonOncorhynchus keta
Rainbow troutOncorhynchus mykiss
Chinook salmonOncorhynchus tshawytscha
Cherry salmonOncorhynchus masou
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 181,457 open-data records from 1907 to 2025.
- Species data updated November 5, 2026.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.