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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Sevenband cardinalfish

Ostorhinchus septemstriatus Günther, 1880
Max Length
5.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
18–68 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Sevenband cardinalfish (Ostorhinchus septemstriatus) 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 5.3 cm. It occurs at depths between 18 and 68 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Ostorhinchus septemstriatus
Authority
Günther, 1880
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
5.3 cm
Depth Range
18–68 m
Trophic Level
3.4
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. This species is characterized by 3 narrow dark stripes, the first from nape along base of first dorsal fin, the second above eye to upper caudal peduncle, the third midlateral from front of snout to end of caudal fin; pectoral rays 13-14; well-developed gill rakers 14-16, total with rudiments 17-21; first dorsal spines 7 .: fusiform / normal.

🌀 Behaviour

Behavioural data for Sevenband 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 - 68 m . Tropical West Pacific: continental margins from Australia and the Philippines; expected elsewhere in Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.4±0.45
🌙 Nocturnal

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.07 (TL)
Max TL
5.3cm
Dorsal Spines
8
Dorsal Rays
9
Anal Spines
2
Anal Rays
8

🌡️ 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
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Günther, 1880

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