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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Transparent cardinalfish

Apogon crassiceps Garman, 1903
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
18–55 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
4.5 cm
Depth Zone
reef

📖 Overview

Found on inshore reefs, lagoons, and seaward reefs . Nocturnal species . Feeds on small benthic crustaceans . Maximum depth reported taken from Ref. 57178.

Scientific Name
Apogon crassiceps
Authority
Garman, 1903
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
5 cm
Depth Range
18–55 m
Trophic Level
3.5
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Distinguished by having the following characteristics: dorsal-fin rays VI-I, 9; anal-fin rays II,8; pectoral fin rays 13; pelvic fin rays I,5; pored lateral line scales 24; predorsal scales 5-6; large scale between first dorsal fin and lateral line 1; circumpeduncular scales 12; total gill rakers 15-16, developed gill rakers 8-9; full scale between first dorsal fin and lateral line 1, often with smaller second scale . Resembles A. unicolor but distinguished by fewer spines in the 1st dorsal fin (6 against 7), large scales, and fewer lateral line scales (23 against 25). Body color uniformly dark reddish, each scale mottled with brown. Attains 10 cm TL. Further characterized by having a semi-transparent red color, with a thin, dark red stripe on mid-lateral surface of the body greatest depth of body 2.7-3.0 in SL .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Transparent 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 18 - 55 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.5
🌙 Nocturnal
Food Items

small benthic crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01479 × L3.06 (TL)
Max TL
5cm
Dorsal Spines
7
Dorsal Rays
9
Anal Spines
2
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Garman, 1903

🦠 Common Diseases

The following diseases are known to affect Transparent cardinalfish.

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