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Diadromous Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Temperate

Cutthroat trout

Oncorhynchus clarkii Richardson, 1836
Oncorhynchus Clarkii (Oncorhynchus clarkii)
Oncorhynchus Clarkii (Oncorhynchus clarkii)
Max Length
99 cm
Max Weight
18.6 kg
Lifespan
13 yrs
Trophic Level
3.8
Depth
0–200 m
Climate
Temperate
Resilience
Medium
Vulnerability
48.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Prefers relatively small streams, with gravel bottoms and gentle gradients. Spawning adults migrate from the sea into streams to spawn . The young fish usually stay in the stream for a year or two before entering the sea, but some populations never got to sea at all. In rare cases, some individuals of sea-going populations, may remain in fresh water for as long as eight years . Feeds on small fishes, crustaceans, and insects . The flesh is orange-red and of excellent flavor . Utilized fresh and eaten fried, broiled, and baked . This species does not compete well with other fish, tends to hybridize, and is unable to withstand fishing pressure = depletion of stocks.

Scientific Name
Oncorhynchus clarkii
Authority
Richardson, 1836
Habitat
Diadromous
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
99 cm
Max Weight
18.6 kg
Lifespan
13 years
Depth Range
0–200 m
Trophic Level
3.8
Resilience
Medium
Vulnerability
48.00/100
Migration
Anadromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 11; Anal spines: 0; Anal soft rays: 8 - 12. Color is variable. Generally dark green to greenish-blue on back, olive-green on upper flank, silvery on lower flank and belly; flanks spots below lateral line are more numerous anteriorly; irregular spots on dorsal, adipose and caudal fins and the anal, pectoral and pelvic fin bases; gill covers are pinkish. Those found at sea or recent migrants to freshwater are silvery with a bluish back, yellowish lower flanks and fins, and sparse spots.: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Cutthroat trout is currently being reviewed.

🦐 Diet

Diet information for Cutthroat trout is currently being compiled.

🥚 Reproduction

Spawn Location
Gravel
Size at Maturity
15.2cm TL

Spawning occurs both daytime and nighttime. The female selects a site and builds a redd while the male courts her and drives away other males. Upon completion of the redd, the female settles into the pitt, immediately followed by the male. The pair releases eggs and sperm simultaneously and the eggs fall into the spaces between the gravel. The female then moves to the upstream edge of the redd and resumes digging, thereby covering the eggs. When completely covered, the female may use the new redd to spawn once more or she may look for another spot and repeat the entire process. Both males and females spawn with one or more members of the opposite sex . Reproductive strategy: synchronous ovarian organization, determinate fecundity .

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; anadromous ; depth range 0 - 200 m . Temperate; ? - 23°C ; 61°N - 40°N south to the Eel River in northern California, USA and is found in most streams emptying into the Pacific.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Anadromous
Trophic Level
3.8±0.56
Food Items

small fishes, crustaceans, and insects (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L3.02 (TL)
Max TL
99cm
Max Weight
18,600g
Dorsal Rays
10
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
48.00/100
Moderate-High vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Richardson, 1836

🍽️ Edibility & Flavour

"Cutthroat trout is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Detailed nutritional data for Cutthroat trout is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Cutthroat trout has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

👥 Community & Contribute

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