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💧 Freshwater Least Concern 🌡️ Tropical

Tana-churchill

Petrocephalus tanensis Whitehead & Greenwood, 1959
Max Length
15.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Tana-churchill (Petrocephalus tanensis), first described by Whitehead & Greenwood, 1959 is a medium-sized fish in the family Mormyridae (order Osteoglossiformes). Adults typically reach 15.20 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Petrocephalus tanensis
Authority
Whitehead & Greenwood, 1959
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
15.2 cm
Trophic Level
3.3
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 22 - 27; Anal spines: 0; Anal soft rays: 26 - 29. Diagnosis: Body depth 25.7-35.6% of standard length; predorsal length 57.4-64.5% of standard length; dorsal fin length 16.7-22.2% of standard length; anal fin length 21.4-25.7% of standard length; distance dorsal fin to end of caudal peduncle 42.7-47.2% of standard length; depth of caudal peduncle 29.1-43.9% of its length; 22-27 dorsal fin rays . : fusiform / normal.

🌀 Behaviour

Behavioural data for Tana-churchill is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01549 × L2.86 (TL)
Max TL
15.2cm
Dorsal Rays
25
Anal Rays
28

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2022

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Whitehead & Greenwood, 1959

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