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💧 Freshwater 🎣 Game Fish 🌡️ Temperate 🎣 Game Fish

Golden trout

Oncorhynchus aguabonita Jordan, 1892
Max Length
71 cm
Max Weight
5.0 kg
Lifespan
9 yrs
Trophic Level
3.3
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
52.00/100
Typical Length
29.8 cm
Depth Zone
demersal

📖 Overview

Inhabits clear, cool headwaters, creeks, and lakes at elevations above 2100 m. Entire life history is spent in freshwater . Oviparous . Eggs are buried in unguarded nests .

Scientific Name
Oncorhynchus aguabonita
Authority
Jordan, 1892
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
Max Length
71 cm
Max Weight
5 kg
Lifespan
9 years
Trophic Level
3.3
Resilience
Medium
Vulnerability
52.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🐟 Physical Description

: fusiform / normal.

🌀 Behaviour

Behavioural data for Golden trout is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 🪺 Nest Builder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Nest
Fertilization
External

Distinct pairing . Reproductive strategy: synchronous ovarian organization, determinate fecundity .

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory . Temperate; 37°N - 36°N North America: Upper Kern River basin, Tulare and Kern counties in California, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.3±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.03 (TL)
Max TL
71cm
Max Weight
5,000g

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
52.00/100
Moderate-High vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Jordan, 1892

🎣 Angling Guide

Difficulty
Intermediate
Fight Rating
strong runs with acrobatic jumps
Best Seasons
spring,summer,fall
Best Time
early morning and late evening
Line Weight
6-15
Rod Type
medium-action fly rod or spinning rod
Hook Size
6-12
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
fly fishing trolling drift fishing centre-pin
Bait & Lures
nymphs streamers spinners spoons salmon roe minnow patterns
Recommended Tackle
  • medium-action 8-9ft fly rod
  • 5-8 lb tippet
  • floating or sinking-tip line
Where to Find Them
  • seams and current breaks in rivers
  • tributary mouths
  • undercut banks
  • deep pools during high sun
Tips & Tricks
Match the hatch when fly fishing; use natural presentations. Cold water increases fight duration.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Strict bag and size limits vary by jurisdiction. Barbless hooks required in many rivers.

🌐 Names & Taxonomy

Language Common Names
🇬🇧English California golden trout · golden trout

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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