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🌊 Marine Vulnerable ⚠️ Venomous ⚡ Venomous 🌡️ Tropical

Japanese butterflyray

Gymnura japonica Temminck & Schlegel, 1850
Max Length
100 cm
Max Weight
Lifespan
Trophic Level
3.8
Depth
Climate
Tropical
Resilience
Very low
Vulnerability
42.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Inhabits sandy or muddy bottom in shallow waters . Feeds on benthic animals. Spines covered with skin with poisonous glands. Ovoviviparous. Used as 'kamaboko' material . Caught often by demersal trawl, trammel and gillnet fisheries, and occasionally using tangle nets.Utilized for its meat, but of limited value due to its typically small size.

Scientific Name
Gymnura japonica
Authority
Temminck & Schlegel, 1850
Habitat
Marine
Climate
Tropical
IUCN Status
VU
Max Length
100 cm
Trophic Level
3.8
Resilience
Very low
Vulnerability
42.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Japanese butterflyray is currently being compiled.

🌀 Behaviour

Behavioural data for Japanese butterflyray is currently being reviewed.

🦐 Diet

Diet information for Japanese butterflyray is currently being compiled.

🥚 Reproduction

Size at Maturity
57cm TL

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures . Distinct pairing with embrace . Gives birth to ~3 pups; born between 20-22 cm WD.

🌍 Habitat & Distribution

Marine; demersal. Tropical Northwest Pacific: southern Japan to the China seas.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.8±0.61
Food Items

benthic animals

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.08 (TL)
Max TL
100cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
3.8
Predator
Climate Zone
Tropical
Described By
Temminck & Schlegel, 1850

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Gymmura japonica Temminck & Schlegel 1850 Synonym
Pteroplatea japonica Temminck & Schlegel 1850 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

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