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💧 Freshwater Least Concern 🌡️ Tropical

Shortfin bichir

Polypterus palmas Ayres, 1850
Max Length
35.3 cm
Max Weight
Lifespan
Trophic Level
2.9
Depth
Climate
Tropical
Resilience
Low
Vulnerability
23.00/100
Typical Length
Depth Zone
demersal

📖 Overview

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

Scientific Name
Polypterus palmas
Authority
Ayres, 1850
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
35.3 cm
Latitude
10°S – 7°N
Trophic Level
2.9
Resilience
Low
Vulnerability
23.00/100
Water Temp
26–28 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 7 - 10; Anal spines: 12 - 14; Vertebrae: 56 - 59. Diagnosis: Polypterus palmas is distinguished from other species of the genus by the upper jaw longer than lower jaw, pectoral fin not reaching the level of the first dorsal fin ray and 27-32 scales between occiput and first dorsal fin ray . : elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Shortfin bichir is currently being reviewed.

🦐 Diet

Diet information for Shortfin bichir is currently being compiled.

🥚 Reproduction

Reproduction data for Shortfin bichir is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; pH range: ? - 7.0; dH range: ? - 10. Tropical; 26°C - 28°C ; 7°N - 10°S known from the Congo River basin (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.9±0.43

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.05 (TL)
Max TL
35.3cm
Dorsal Spines
9
Anal Spines
13
Vertebrae
58

🌡️ Water Parameters & Tolerance

Temperature Range
26–28°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Latitude Range
7°N – 10°S
Described By
Ayres, 1850

👥 Community & Contribute

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