Spotback skate (Atlantoraja castelnaui) fish species and information / pictures of Spotback skate - Atlantoraja castelnaui

Spotback skate (Atlantoraja castelnaui) fish species information

Scientific Name
Atlantoraja castelnaui

Common Name
Spotback 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 92-103 mm long and 72-80 mm wide (Ref. 41249). Utilized as fishmeal (Ref. 6077).

Classification

Classified By

Miranda Ribeiro, 1907

Class

Sharks and Rays (Elasmobranchii)

Order

Skates and Rays (Rajiformes)

Family

Skates (Rajidae)

Distribution

Region

Southwest Atlantic

Distribution

Southwest Atlantic: Brazil, Uruguay and Argentina.

Range

20°S - 40°S, 60°W - 40°W

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

10 m

Depth To - meters

100 m

Zone

demersal

Environment

Marine; demersal; depth range 10 - 100 m (Ref. 57911)

Trophic Level

4.5 s.e. 0.80 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

132 cm

Common Length

45.0 cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

High to very high vulnerability (71 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Endangered (EN) (A2bd+3bd+4bd)