Elasmobranchii (hajar och rockor) (sharks and rays) >
Torpediniformes (Electric rays) >
Torpedinidae (Electric rays)
Etymology: Torpedo: Latin, torpere = be sluggish (Ref. 45335).
Eponymy: A toponym; this electric ray is named after the city of Alexandria in Egypt, not a person. (Ref. 128868), visit book page.
Taxonomic Remarks
Validity of species doubtful, origin unclear if eastern Mediterranean or northern Red Sea (Ref. 95633).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande. Tropical
Mediteranean Sea or Red Sea: Egypt. Origin doubful if Red Sea or Mediterranean, also described from off Alexandria.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Ovoviviparous (Ref. 50449).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00678 - 0.03229), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.4 ±0.8 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Moderate vulnerability (44 of 100).
🛈