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💧 Freshwater 🌡️ Subtropical

Altamaha bass

Micropterus calliurus Freeman & Freeman, 2025
Max Length
22 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
36.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Altamaha bass (Micropterus calliurus), first described by Freeman & Freeman, 2025 is a medium-sized fish in the family Centrarchidae (order Centrarchiformes). Adults typically reach 22.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Micropterus calliurus
Authority
Freeman & Freeman, 2025
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
Max Length
22 cm
Trophic Level
3.5
Resilience
Medium
Vulnerability
36.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 12; Anal spines: 3; Anal soft rays: 10. : fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Altamaha bass is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 🪺 Nest Builder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Nest
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical North America: USA.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.5±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0123 × L3.07 (TL)
Max TL
22cm
Dorsal Spines
10
Dorsal Rays
12
Anal Spines
3
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Freeman & Freeman, 2025

👥 Community & Contribute

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