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💧 Freshwater Least Concern 🌡️ Subtropical

Hardhead

Mylopharodon conocephalus Baird & Girard, 1854
Max Length
100 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Subtropical
Resilience
Very low
Vulnerability
69.00/100
Typical Length
35 cm
Depth Zone
demersal

📖 Overview

Overview information for Hardhead is currently being compiled by our editorial team.

Scientific Name
Mylopharodon conocephalus
Authority
Baird & Girard, 1854
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
100 cm
Trophic Level
2
Resilience
Very low
Vulnerability
69.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 8. Body long, slender; brown to dusky bronze above (darkest on large individuals; silver side; dorsal-fin origin behind pelvic-fin origin; 69-81 scales on lateral line; 8 dorsal rays; premaxillary frenum present; snout long, pointed; large, terminal mouth reaching front of eye; pharyngeal teeth 2,5-4,2 .: fusiform / normal.

🌀 Behaviour

Behavioural data for Hardhead is currently being reviewed.

🦐 Diet

Diet information for Hardhead is currently being compiled.

🥚 Reproduction

Reproduction data for Hardhead is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; potamodromous . Subtropical; 42°N - 36°N North America: Sacramento-San Joaquin and Russian River drainages in California, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Potamodromous
Trophic Level
2±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.03 (TL)
Max TL
100cm
Dorsal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
69.00/100
High vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Baird & Girard, 1854

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Gila conocephala Baird & Girard 1854 Synonym
Mylopharodon robustus Ayres 1855 Synonym

🗺️ 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
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