Aleutian skate (Bathyraja aleutica) fish species and information / pictures of Aleutian skate - Bathyraja aleutica

Aleutian skate (Bathyraja aleutica) fish species information

Scientific Name
Bathyraja aleutica

Common Name
Aleutian skate

Biology
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 capsule measures 120-136 mm long and 73-90 mm wide (Ref. 41249, 41253).

Classification

Classified By

Gilbert, 1896

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Skates (Rajidae)

Distribution

Region

North Pacific

Distribution

North Pacific: northern Japan to the Aleutian Islands and southeastern Alaska.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

15 m

Depth To - meters

1602 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 15 - 1602 m (Ref. 50550)

Trophic Level

4.14 s.e. 0.76 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

161 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

Fisheries:

Vulnerability

Very high vulnerability (86 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)