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💧 Freshwater Extinct 🌡️ Temperate

Thicktail chub

Gila crassicauda Baird & Girard, 1854
Max Length
25 cm
Max Weight
-
Lifespan
-
Trophic Level
2.1
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
45.00/100
Typical Length
20 cm
Depth Zone
-

📖 Overview

Formerly found in marshes and backwaters along rivers and lake margins. Reported to reach a maximum size of 3.2 cm TL . Migratory behaviour is undetermined .

Scientific Name
Gila crassicauda
Authority
Baird & Girard, 1854
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
EX
Max Length
25 cm
Trophic Level
2.1
Resilience
Medium
Vulnerability
45.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 8 - 9; Anal soft rays: 8 - 9. Caudal peduncle thick and deep. Body deep and compressed with nape high rising steeply from short, pointed head. Lateral line with 49-60 scales. Dorsal and anal fins with 8-9 rays. Pharyngeal teeth 2,5-4,2 .: elongated.

🌀 Behaviour

Behavioural data for Thicktail chub is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Temperate North America: Extinct; formerly in USA (Sacramento-San Joaquin River, Clear Lake (Lake Co.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.1±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
25cm
Dorsal Rays
9
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Extinct
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
45.00/100
Moderate vulnerability
Trophic Level
2.1
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Temperate
Described By
Baird & Girard, 1854

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Thicktail Chub
🌍CES gila tlustoocasá

Scientific Synonyms

Scientific Name Author Year Status
Lavinia conformis Baird & Girard 1854 Synonym
Lavinia crassicauda Baird & Girard 1854 Synonym
Leuciscus gibbosus Ayres 1854 Synonym
Tigoma crassa Girard 1856 Synonym

🦠 Common Diseases

The following diseases are known to affect Thicktail chub.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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