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💧 Freshwater Data Deficient 🌡️ Tropical

Black-finned Madagascar cichlid

Ptychochromis ernestmagnusi Sparks & Stiassny, 2010
Max Length
14.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
22.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found in a region which is characterized by humid, lowland rainforest; with a steep overall profile, and a generally rocky to sandy substrate .

Scientific Name
Ptychochromis ernestmagnusi
Authority
Sparks & Stiassny, 2010
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
14.7 cm
Trophic Level
3.4
Resilience
High
Vulnerability
22.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 11 - 13; Anal spines: 3; Anal soft rays: 7 - 9; Vertebrae: 27 - 28. Diagnosis: Ptychochromis ernestmagnusi is a Ptychochromis exhibiting the eastern-type palatine morphology and is further distinguished from all congeners except P. grandidieri, P. loisellei, P. makira and P. curvidens by an anterior displacement of the first supraneural such that it overlies the dorsoposterior margin of the supraoccipital . Among eastern group Ptychochromis, P. makira shares with P. ernestmagnusi the possession of supraneurals with a characteristically flattened dorsal profile, which is interpreted here as a synapomorphy uniting these two geographically proximate species; also shared with P. makira is the presence of strong, paired, lateral barring as a prominent component of pigmentation patterning; however, P. makira can be distinguished by distinctively V-shaped lateral flank bars, whereas in P. ernestmagnusi the bars are oriented vertically; Ptychochromis ernestmagnusi is further distinguished from P. makira by conspicious iridescent spangling on the flank and dorsal fin near its base, dusky grayish-green base colouration vs. whitish, four lachrymal laterosensory foramina vs. three, and a total of seven infraorbital bones vs. six . : fusiform / normal.

🌀 Behaviour

Behavioural data for Black-finned Madagascar cichlid is currently being reviewed.

🦐 Diet

Diet information for Black-finned Madagascar cichlid is currently being compiled.

🥚 Reproduction

Reproduction data for Black-finned Madagascar cichlid is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
14.7cm
Dorsal Spines
13
Dorsal Rays
12
Anal Spines
3
Anal Rays
8
Vertebrae
28

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Sparks & Stiassny, 2010

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