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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Petrochromis Macrognathus

Petrochromis macrognathus Yamaoka, 1983
Max Length
17.2 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
0–0 m
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Cryptic species between rocks near shore . Occurs in the upper 2-3 m of the water column . Feeds by scraping loose algae from the vertical faces of boulders in turbulent water . In order to cope with the movement of the surge its feeding speed is fast; very shy species; males are territorial and hide in large caves when threatened . Often solitary but more than 2 individuals may be seen at once .

Scientific Name
Petrochromis macrognathus
Authority
Yamaoka, 1983
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
17.2 cm
Trophic Level
2
Resilience
High
Vulnerability
25.00/100
Water Temp
24–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Cichliformes
Cichliformes
Family
Cichlidae
Cichlidae
Genus
Petrochromis
Petrochromis
Species
Petrochromis Macrognathus
Petrochromis macrognathus

🐟 Physical Description

Physical description for Petrochromis Macrognathus is currently being compiled.

🌀 Behaviour

Behavioural data for Petrochromis Macrognathus is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous 👄 Mouth Brooder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal; depth range 0 - 0 m . Tropical; 24°C - 26°C ; 3°S - 9°S north of Cape Kabogo (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.01862 × L3.02 (TL)
Max TL
17.2cm

🌡️ Water Parameters & Tolerance

Temperature Range
24–26°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2025

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Yamaoka, 1983

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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