Ikan bertulang rawan (sharks and rays) >
Torpediniformes (Electric rays) >
Narkidae (Sleeper rays)
Etymology: Heteronarce: Greek, heteros = other + Greek, narke = numbness (Ref. 45335).
More on authors: Baranes & Randall.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut dasar (demersal); kisaran kedalaman ? - 160 m (Ref. 26282). Tropical; 28°N - 13°N, 34°E - 54°E (Ref. 114953)
Western Indian Ocean: Red Sea (Gulf of Aqaba) and Gulf of Aden.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 17.6 cm NG jantan/; (Ref. 28618)
A benthic species found on outer continental shelf. Presumably feeds on soft bottom invertebrates such as polychaetes and crustaceans. Males reaches maturity at ca. 15 cm TL. Material rare; specimens from Gulf of Aden and Red Sea slightly differ (Ref. 114953).
Life cycle and mating behavior
Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva
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 IUCN Red List (Ref. 130435)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5627 [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).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).