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💧 Freshwater Extinct 🌡️ Subtropical

Clear Lake splittail

Pogonichthys ciscoides Hopkirk, 1974
Max Length
36 cm
Max Weight
Lifespan
Trophic Level
2.9
Depth
Climate
Subtropical
Resilience
Low
Vulnerability
48.00/100
Typical Length
25 cm
Depth Zone
demersal

📖 Overview

Found in shoreline (as young) and open water of Clear Lake. Formerly spawned in tributaries of lake . Migratory behaviour is undetermined .

Scientific Name
Pogonichthys ciscoides
Authority
Hopkirk, 1974
Habitat
Freshwater
Climate
Subtropical
IUCN Status
EX
Max Length
36 cm
Trophic Level
2.9
Resilience
Low
Vulnerability
48.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Barbel absent or small on terminal mouth; less asymmetrical caudal fin; usually 62-65 scales on lateral line; and 1st gill arch with 18-23 rakers .

🌀 Behaviour

Behavioural data for Clear Lake splittail is currently being reviewed.

🦐 Diet

Diet information for Clear Lake splittail is currently being compiled.

🥚 Reproduction

Reproduction data for Clear Lake splittail is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Subtropical; 40°N - 38°N North America: Clear Lake and tributaries in Lake County in California, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.1 (TL)
Max TL
36cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Extinct
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
48.00/100
Moderate-High vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Subtropical
Described By
Hopkirk, 1974

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