Leadhued skate (Notoraja tobitukai) fish species and information / pictures of Leadhued skate - Notoraja tobitukai

Leadhued skate (Notoraja tobitukai) fish species information

Scientific Name
Notoraja tobitukai

Common Name
Leadhued skate

Biology
Deep sea species. Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 3.6-3.8 cm long and 2.2-2.5 cm wide (Ref. 41249, 41253).

Classification

Classified By

Hiyama, 1940

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Skates (Rajidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: Japan, Okinawa Trough, East China Sea, and Taiwan.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

300 m

Depth To - meters

1000 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 300 - 1000 m (Ref. 41299)

Trophic Level

3.73 s.e. 0.63 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

50.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (44 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)