Electrolux addisoni, Ornate sleeper-ray

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Electrolux addisoni Compagno & Heemstra, 2007

Ornate sleeper-ray
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Image of Electrolux addisoni (Ornate sleeper-ray)
No image available for this species;
drawing shows typical species in Narkidae.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Torpediniformes (Electric rays) > Narkidae (Sleeper rays)
Etymology: Electrolux: Name refers to the well-developed electrogenic properties of this ray, the discovery of which sheds light (Latin 'lux') on the rich and poorly known fish diversity of the Western Indian Ocean.;  addisoni: Named for Mark Addison, BlueWilderness dive charters of Widenham, KwaZulu-Natal..

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien demersaal; diepte 6 - 35 m (Ref. 75572). Subtropical; 30°S - 32°S, 29°E - 31°E (Ref. 114953)

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Western Indian Ocean: South Africa from Coffee Bay (Eastern Cape Province) to Durban (KwaZulu-Natal)

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 52.0 cm TL mannelijk / geslacht onbekend; (Ref. 75572); max. gepubliceerd gewicht: 1.8 kg (Ref. 75572)

Biologie     Verklarende woordenlijst (bv. epibenthic)

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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : Carvalho, Marcelo | Medewerkers

Compagno, L.J.V. and P.C. Heemstra, 2007. Electrolux addisoni, a new genus and species of electric ray from the east coast of South Africa (Rajiformes: Torpedinoidei: Narkidae), with a review of torpedinoid taxonomy. Smithiana Bull. (7):15-49. (Ref. 75572)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 25 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 23.7 - 24.1, mean 23.8 °C (based on 6 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 1.0002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.3   ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).