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🌊 Marine 🌡️ Tropical

Two-spined deepwater cardinalfish

Epigonus bispinosus Okamoto & Gon, 2018
Max Length
16.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
250–455 m
Climate
Tropical
Resilience
Medium
Vulnerability
35.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Two-spined deepwater cardinalfish (Epigonus bispinosus), first described by Okamoto & Gon, 2018 is a medium-sized fish in the family Epigonidae (order Acropomatiformes). Adults typically reach 16.60 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 250 to 455 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Epigonus bispinosus
Authority
Okamoto & Gon, 2018
Habitat
Marine
Climate
Tropical
Max Length
16.6 cm
Depth Range
250–455 m
Trophic Level
3.5
Resilience
Medium
Vulnerability
35.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 10; Anal spines: 2; Anal soft rays: 9; Vertebrae: 25. This species is distinguished by the following set of characters: D VII-I,10; pectoral-fin rays 15-16; total gill rakers 31-33; vertebrae 10 + 15; pyloric caeca 9-11; pored la teral-line scales 46-50 + 4-5; scales are weakly ctenoid; scales below lateral line 11; with pungent opercular spine; no maxillary mustache-like process; with ribs on last abdominal vertebra; with two small spines on symphysis of lower jaw .Cross section: compressed.

🌀 Behaviour

Behavioural data for Two-spined deepwater cardinalfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range 250 - 455 m . Tropical Southwest Indian Ocean: South Africa and off northern Madagascar.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01202 × L3.02 (TL)
Max TL
16.6cm
Dorsal Spines
8
Dorsal Rays
10
Anal Spines
2
Anal Rays
9
Vertebrae
25

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
35.00/100
Low vulnerability
Trophic Level
3.5
Predator
Climate Zone
Tropical
Described By
Okamoto & Gon, 2018

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