Smallthorn skate (Bathyraja minispinosa) fish species and information / pictures of Smallthorn skate - Bathyraja minispinosa

Smallthorn skate (Bathyraja minispinosa) fish species information

Scientific Name
Bathyraja minispinosa

Common Name
Smallthorn skate

Biology
This species is distinguished from its congeners in Bathyraja in having a whitish area along the inner margin of eyes; dorsal side of disc with minute fine prickles; pointed clasper with a pseudosiphon-like groove; dense, minute prickles covering smaller egg capsule (Ref. 75535).

Classification

Classified By

Ishiyama & Ishihara, 1977

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Skates (Rajidae)

Distribution

Region

North Pacific

Distribution

North Pacific: Sea of Okhotsk off Abashiri, Japan to the Kamchatka Peninsula and the Bering Sea.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

150 m

Depth To - meters

1420 m

Zone

demersal

Environment

Marine; demersal; depth range 150 - 1420 m (Ref. 50550)

Trophic Level

3.84 s.e. 0.66 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

79.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 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 (53 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)