Japanese butterflyray (Gymnura japonica) fish species and information / pictures of Japanese butterflyray - Gymnura japonica

Japanese butterflyray (Gymnura japonica) fish species information

Scientific Name
Gymnura japonica

Common Name
Japanese butterflyray

Biology
Inhabits sandy or muddy bottom in shallow waters (Ref. 11230). Feeds on benthic animals. Spines covered with skin with poisonous glands. Ovoviviparous. Used as 'kamaboko' material (Ref. 637). 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 (Ref.58048).

Classification

Classified By

Temminck & Schlegel, 1850

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Butterfly rays (Gymnuridae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: southern Japan to the China seas. Possibly in Thailand (Ref. 9918). Reported from India (Ref. 45255).

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; demersal

Trophic Level

3.78 s.e. 0.61 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

100.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5001 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries:

Vulnerability

Moderate vulnerability (42 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec assumed to be

Threat To Humans

Venomous (Ref. 637)

IUCN Red List Status

Data deficient (DD)