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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Allen's cardinalfish

Cheilodipterus alleni Gon, 1993
Max Length
10.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
10–40 m
Climate
Tropical
Resilience
High
Vulnerability
18.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Smallest mature female measured at 6.3 cm. Solitary in caves and under ledges, inhabits seaward reef slopes in 10-40 m (Ref 90102).

Scientific Name
Cheilodipterus alleni
Authority
Gon, 1993
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
10.4 cm
Depth Range
10–40 m
Trophic Level
3.9
Resilience
High
Vulnerability
18.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 10; Anal spines: 2; Anal soft rays: 8 - 9. Color in life pale with 8 golden brown stripes. Stripes below middle of body equal to or slightly wider than interspaces. Stripes above middle of body slightly narrower than interspaces. Distal half of first dorsal fin black and proximal half pale. Second dorsal, anal, pectoral, and pelvic fins with reddish tinge. Leading edge of second dorsal and anal fins dusky to dark brown, usually darker distally. Upper- and lowermost caudal-fin rays dark brown. No dark caudal spot (Ref 8525).: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Allen's cardinalfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

👄 Mouth Brooder

Mouthbrooders . Distinct pairing during courtship and spawning .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 10 - 40 m . Tropical Central Pacific: Papua New Guinea, Flores in Indonesia, and Sibvan Island in Borneo.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.9±0.7
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.00708 × L3.22 (TL)
Max TL
10.4cm
Dorsal Spines
7
Dorsal Rays
10
Anal Spines
2
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
18.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Gon, 1993

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