Elasmobranchii (hajar och rockor) (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335); oculifera: Named for its bulging eyes [oculus = eye; fera = to bear or carry].
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bentopelagisk; djupintervall ? - 25 m (Ref. 114953). Tropical; 11°N - 24°N, 50°E - 60°E (Ref. 114953)
Western Indian Ocean: Gulf of Oman and Gulf of Aden.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - 32.5 cm
Max length : 35.0 cm SL hane/ej könsbestämd; (Ref. 41511)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Ryggkotor: 109. Dorsal with irregular reticulated light brown to reddish-brown pattern over disc, pelvic fins and tail, demarcating white or creamy-white oval; reniform and circular spots of variable sizes over disc, and small white spots on dorsal and caudal fins. Eyes large and bulging. Circular spiracles with markedly elevated rims and complete antero-lateral margin. Interorbital distance greater than interspiracular distance. First dorsal fin greater than second in height. Individual teeth with small lateral cusplets; upper and lower tooth bands roughly equal in width and broadly rounded.
Body shape (shape guide): other.
Occurs above sandy bottom near rocky reef areas. Females reaches maturity at 32 cm TL, males at ca. 24 cm TL; born at ca. 12 cm TL (Ref. 114953).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
de Carvalho, M.R., L.J.V. Compagno and J.K.L. Mee, 2002. Narcine oculifera: a new species of electric ray from the gulfs of Oman and Aden (Chondrichthyes: Torpediniformes: Narcinidae). Copeia 2002(1):137-145. (Ref. 41511)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming fecundity<100). |
Sårbarhet i fisket (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |