Twin-spot butterfly ray (Gymnura bimaculata) fish species and information / pictures of Twin-spot butterfly ray - Gymnura bimaculata

Twin-spot butterfly ray (Gymnura bimaculata) fish species information

Scientific Name
Gymnura bimaculata

Common Name
Twin-spot butterfly ray

Biology
Ovoviviparous (Ref. 50449).

Classification

Classified By

Norman, 1925

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Butterfly rays (Gymnuridae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: known from the type locality, Yenting, Chekiang Province, China.

Range

Unknown

Environment

Climate

Subtropical

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

3.89 s.e. 0.62 Based on size and trophs of closest relatives

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

Unknown 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

Unknown

Vulnerability

Moderate to high vulnerability (51 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated