New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Least Concern 🌡️ Temperate

Olympic mudminnow

Novumbra hubbsi Schultz, 1929
Max Length
8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
13.00/100
Typical Length
5.5 cm
Depth Zone
demersal

📖 Overview

Adults occur in quiet water with dense vegetation or other cover over mud and debris; also in cool, brown waters of bogs and swamps.

Scientific Name
Novumbra hubbsi
Authority
Schultz, 1929
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
8 cm
Trophic Level
3.2
Resilience
High
Vulnerability
13.00/100
Migration
Non-migratory
Water Temp
4–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Olympic mudminnow is currently being compiled.

🌀 Behaviour

Behavioural data for Olympic mudminnow is currently being reviewed.

🦐 Diet

Diet information for Olympic mudminnow is currently being compiled.

🥚 Reproduction

Reproduction data for Olympic mudminnow is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory . Temperate; 4°C - 25°C ; 48°N - 45°N North America: coastal lowlands of Olympic Peninsula in Washington, USA from Ozette Lake and Queets River drainage to upper Chehalis River drainage; occasionally in lower Deschutes River (Puget Sound drainage), as a result of floodwater exchange with Chehalis River.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3.09 (TL)
Max TL
8cm

🌡️ Water Parameters & Tolerance

Temperature Range
4–25°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Temperate
Described By
Schultz, 1929

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Olympic mudminnow ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.