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🌊 Marine Least Concern 🌡️ Tropical

Blackvent cardinalfish

Ostorhinchus melanoproctus Fraser & Randall, 1976
Max Length
4 cm
Max Weight
Lifespan
Trophic Level
3.3
Depth
15–50 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
Depth Zone
reef

📖 Overview

Occurs in aggregations in caves in vertical walls . Also found in steep outer reef slopes in 15-50 m (Ref 90102).

Scientific Name
Ostorhinchus melanoproctus
Authority
Fraser & Randall, 1976
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
4 cm
Depth Range
15–50 m
Trophic Level
3.3
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Apogoniformes
Apogoniformes
Family
Apogonidae
Apogonidae
Genus
Ostorhinchus
Ostorhinchus
Species
Blackvent cardinalfish
Ostorhinchus melanoproctus

🐟 Physical Description

Dorsal spines (total): 7 - 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8 - 9. : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Blackvent cardinalfish is currently being reviewed.

🦐 Diet

Diet information for Blackvent cardinalfish is currently being compiled.

🥚 Reproduction

👄 Mouth Brooder

Mouthbrooders . Distinct pairing during courtship and spawning .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 15 - 50 m . Tropical West Pacific: Philippines (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.2 (TL)
Max TL
4cm
Dorsal Spines
8
Dorsal Rays
9
Anal Spines
2
Anal Rays
9

🌡️ 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
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Fraser & Randall, 1976

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Apogon melanoproctus Fraser & Randall 1976 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

Aquareap Community Observations
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