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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Temperate

Munahosi cardinalfish

Ostorhinchus cheni Hayashi, 1990
Max Length
13 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
70–100 m
Climate
Temperate
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Munahosi cardinalfish (Ostorhinchus cheni) is a ray-finned fish of the family Apogonidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 13 cm. It occurs at depths between 70 and 100 metres. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Ostorhinchus cheni
Authority
Hayashi, 1990
Habitat
Marine
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
13 cm
Depth Range
70–100 m
Trophic Level
3.7
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8; Vertebrae: 24. Reddish-scarlet body; all fins deep reddish; 2 dusky, narrow stripes (reddish-brown in life), dorso- and midlateral. Upper part of first dorsal blackish; a small black spot between second dorsal spine and pectoral fin base. Center of caudal fin base with a black spot as large as pupil or slightly larger. Five predorsal scales. Preopercular ridge entire, weakly serrated edge. Body depth 2.5-2.6 in SL .: fusiform / normal.

🌀 Behaviour

Behavioural data for Munahosi 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 70 - 100 m . Temperate West Pacific: Sri Lanka, Indonesia, Japan, China, Taiwan, Philippines, Indonesia, Northern Mariana Is.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.7±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.07 (TL)
Max TL
13cm
Dorsal Spines
8
Dorsal Rays
9
Anal Spines
2
Anal Rays
8
Vertebrae
24

🌡️ 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
23.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Hayashi, 1990

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