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💧 Freshwater Vulnerable 🌡️ Temperate

Arroyo chub

Gila orcuttii Eigenmann & Eigenmann, 1890
Max Length
40 cm
Max Weight
Lifespan
4 yrs
Trophic Level
2
Depth
Climate
Temperate
Resilience
Medium
Vulnerability
53.00/100
Typical Length
Depth Zone

📖 Overview

Adults inhabit sandy and muddy bottoms of flowing pools and runs of headwaters creeks and small to medium rivers. Often found in intermittent streams . Migratory behaviour is undetermined .

Scientific Name
Gila orcuttii
Authority
Eigenmann & Eigenmann, 1890
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
VU
Max Length
40 cm
Lifespan
4 years
Trophic Level
2
Resilience
Medium
Vulnerability
53.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 8; Anal soft rays: 7. Gila orcuttii can be distinguised by the following characters: lateral line with 48-62 scales; dorsal fin with 8 rays; anal fin with 7 rays; pharyngeal teeth 2,5-4,2; small, slightly subterminal mouth; short, rounded snout; large eye; deep body; deep caudal peduncle; gray-olive above; often a dusky gray stripe along silver side .: fusiform / normal.

🌀 Behaviour

Behavioural data for Arroyo chub is currently being reviewed.

🦐 Diet

Diet information for Arroyo chub is currently being compiled.

🥚 Reproduction

Reproduction data for Arroyo chub is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Temperate; 35°N - 32°N North America: Malibu and San Juan creeks, and Los Angeles, San Gabriel, San Luis Rey, Santa Ana, and Santa Margarita River drainages in California, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.03 (TL)
Max TL
40cm
Dorsal Rays
8
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
53.00/100
Moderate-High vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Eigenmann & Eigenmann, 1890

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Arroyo Chub

Scientific Synonyms

Scientific Name Author Year Status
Phoxinus orcuttii Eigenmann & Eigenmann 1890 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 14 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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