Ornate sleeper-ray (Electrolux addisoni) fish species and information / pictures of Ornate sleeper-ray - Electrolux addisoni

Ornate sleeper-ray (Electrolux addisoni) fish species information

Scientific Name
Electrolux addisoni

Common Name
Ornate sleeper-ray

Biology
Found in warm-temperate or subtropical waters approximately 310 km of coastline with very narrow continental shelf (10-36 km wide to the 200 m isobath), however, the few sightings were all inside the 50 m isobath; on reefs with sandy or gravelly areas from close inshore to less than 50 m depth, including patches of appropriate habitat on inshore and offshore rocky banks and reefs. Apparently an infauna or meiofauna feeder, feeding on polychaete worms (including a tube-worm) and at least one small shrimp-like crustacean (Ref. 75572).

Classification

Classified By

Compagno & Heemstra, 2007

Class

Sharks and Rays (Elasmobranchii)

Order

Electric rays (Torpediniformes)

Family

Sleeper rays (Narkidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: South Africa.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

6 m

Depth To - meters

35 m

Zone

demersal

Environment

Marine; demersal; depth range 6 - 35 m (Ref. 75572)

Trophic Level

3.31 s.e. 0.31 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

52.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0002 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (29 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Critically Endangered (CR) (B2ab(ii))