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🌊 Marine Least Concern 🌡️ Deep-water

Japanese cusk

Glyptophidium japonicum Kamohara, 1936
Max Length
22 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
145–595 m
Climate
Deep-water
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

A benthic species found on the continental slope . Common species . Oviparous, with oval pelagic eggs floating in a gelatinous mass .

Scientific Name
Glyptophidium japonicum
Authority
Kamohara, 1936
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
22 cm
Depth Range
145–595 m
Trophic Level
3.5
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 123 - 134; Anal soft rays: 98 - 108. Prominent head and body with an attenuate caudal part; head bones with large, thin crests; eye equal to or greater than length of snout; opercular spine broad, flat and weak; basibranchial with 2 median and a pair of tooth patches; long gill rakers on anterior gill arch 21-26 . Caudal fin rays 8-10; stem of pseudobranchial filament pale, filaments 10-15; anterior anal fin ray below 28th-31st dorsal fin rays .: elongated.

🌀 Behaviour

Behavioural data for Japanese cusk 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; benthopelagic; depth range 145 - 595 m . Deep-water Northwest Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.5±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.0038 × L3.14 (TL)
Max TL
22cm
Dorsal Rays
129
Anal Rays
103

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Kamohara, 1936

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