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💧 Freshwater Critically Endangered 🌡️ Tropical

Dark Madagascar cichlid

Ptychochromoides betsileanus Boulenger, 1899
Max Length
24 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
32.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Dark Madagascar cichlid (Ptychochromoides betsileanus), first described by Boulenger, 1899 is a medium-sized fish in the family Cichlidae (order Cichliformes). Adults typically reach 24.00 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 Critically Endangered.The species is a species of conservation concern.

Scientific Name
Ptychochromoides betsileanus
Authority
Boulenger, 1899
Habitat
Freshwater
Climate
Tropical
IUCN Status
CR
Max Length
24 cm
Trophic Level
3.5
Resilience
Medium
Vulnerability
32.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Cichliformes
Cichliformes
Family
Cichlidae
Cichlidae
Genus
Ptychochromoides
Ptychochromoides
Species
Dark Madagascar cichlid
Ptychochromoides betsileanus

🐟 Physical Description

Dorsal spines (total): 13 - 15; Dorsal soft rays (total): 11 - 13; Anal spines: 3; Anal soft rays: 9 - 11; Vertebrae: 28 - 30. This species has a prominent adipose occipital hump .

🌀 Behaviour

Behavioural data for Dark Madagascar cichlid is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Freshwater; demersal. Tropical; 15°S - 23°S central Madagascar.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.5±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01995 × L3.01 (TL)
Max TL
24cm
Dorsal Spines
14
Dorsal Rays
12
Anal Spines
3
Anal Rays
10
Vertebrae
29

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.5
Predator
Climate Zone
Tropical
Described By
Boulenger, 1899

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Trondo Mainty

Scientific Synonyms

Scientific Name Author Year Status
Ptychochromis betsileanus Boulenger 1899 Synonym
Tilapia betsileana Boulenger 1899 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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