Fauna
Species · GBIF taxon 2366363

Umpqua Chub

Oregonichthys kalawatseti

Also known as Umpqua Oregon Chub

Umpqua chubs are small, secretive minnows endemic to slow-moving waters and alcoves within Oregon's Umpqua River basin. They forage along gravel or muddy substrate for tiny aquatic insects and crustaceans, relying on submerged vegetation and woody debris for cover. Spawning occurs in late spring, with males defending small territories in calm side channels.

EndemicFreshwaterRiverine
Umpqua Chub reference
Licensed referencePonderosaPine0 / CC BY-SA 4.0 · cc-by-sa
—observations
—countries
—peak records
VulnerableConservation statusIUCN Red List categoriesLCNTVUENCREWEXVulnerableRed List categories, explained →
Key facts
Diet & prey
  • Midge larvae
  • Mayfly nymphs
  • Water fleas
Predators
  • Smallmouth bass
  • Cutthroat trout
  • Herons
ThreatsHabitat loss, stream flow modification, siltation, and non-native predators
HabitatsSlow-moving streams, side channels, backwaters, and vegetated alcoves
Life span3–5 years
Classification
  1. FamilyCyprinidae
  2. SpeciesOregonichthys kalawatseti
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
What to notice
Look for a small, slender olive-tinted minnow under 7 cm with a blunt snout and faint lateral stripe in calm backwaters.
Support conservation
Observe from the bank or underwater without wading through delicate aquatic vegetation or disturbing gravel beds.
Responsible observation
  • Observation: Look in shallow, slow-moving side channels with dense aquatic vegetation during warm summer months.
  • Conservation: Avoid disturbing delicate riverbanks and instream gravel bars where eggs may be deposited.
  • Handling: Keep native minnows submerged and minimize handling to protect their delicate protective slime layer.
Related species
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