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Colo river cutthroat BLM🐟

Photo: United States Bureau of Land Management · Public domain

SpeciesSalmoniformesSalmonidae
Fish

🐟Cutthroat trout

Oncorhynchus clarkii (Richardson, 1836)

The cutthroat trout is a clade of four fish species of the family Salmonidae native to cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. These four species are the Coastal, Westslope, Lahontan, and the Rocky Mountain. As a member of the genus Oncorhynchus, it is in the Pacific trout group, which includes the widely distributed rainbow trout. Cutthroat trout are popular gamefish, especially among anglers who enjoy fly fishing. The common name "cutthroat" refers to the distinctive red coloration on the underside of the lower jaw. The specific name clarkii was given to honor explorer William Clark, coleader of the Lewis and Clark Expedition.

Text: Wikipedia, CC BY-SA 4.0.

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Measurements
7
vs you
≈ 1/6th of your weight
Also called
Oncorhynchus clarkii
Conservation status
LCLeast concern

IUCN Red List assessment, 2024.

Population trendDecreasing
Key measurements
Body mass
10 kg
Body length
0.99 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
10 years
All measurements ↓
Facts and figures

Everything we know about the Cutthroat trout

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body mass
10 kgrecord 19 kg · FishBase
AnAge
Details ↓

data quality: acceptable

Record: largest individual on record

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Body length
0.99 mmaximum recorded
FishBase
Details ↓

Source: FishBase · v25.04 · CC BY-NC 4.0

Maximum lifespan
10 yearsrecord 13 years · FishBase
AnAge
Details ↓

data quality: acceptable

Record: largest individual on record

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Trophic level
4.01
FishBase
Details ↓

Source: FishBase · v25.04, estimate table · CC BY-NC 4.0

Diet
carnivoreaverage
Details ↓

From trophic level 4.01 (FishBase): <2.2 herbivore, 2.2–2.8 omnivore, >2.8 carnivore.

Danger to humans
harmless
FishBase
Details ↓

Source: FishBase · v25.04 · CC BY-NC 4.0

Volume l
10 Laverage
Details ↓

Body mass at ~1.0 kg/L, the density of vertebrate tissue.

average = a mean across sexes or species in a group.

Not recorded for Cutthroat trout yet: shoulder height, top speed, bite force.

More

More about the Cutthroat trout

In other languages
Oncorhynchus clarkii (es), Oncorhynchus clarkii (fr), Łosoś Clarka (pl), Oncorhynchus clarkii (ca), punakurkkulohi (fi), Strupsnittsöring (sv) … and 16 more languages
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