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Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Benthobatis: Greek, benthos = depth of the sea + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); marcida: From its loose skin and soft aspect ['marcidus' = withered or wasted].
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut batidemersal; kisaran kedalaman 200 - 923 m (Ref. 48493). Deep-water; 34°N - 21°N, 82°W - 74°W (Ref. 114953)
Western Central Atlantic. South Carolina, USA to northern Cuba.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 50.0 cm WD jantan/; (Ref. 26340)
Narrow protractile mouth. Caudal is oval shape. Greater length of head anterior to spiracles, union of margins of its pelvic fins to their tips with the sides of the tail. Soft body and skin (Ref. 6902). Light brown to yellowish-brown dorsal color pattern; white to yellowish-white ventral color pattern, sometimes with distinct yellow markings on posterior ventral disc surface, ventral pelvic fin area, and around mouth. Caudal fin length much less than 1/2 length of tail, roughly equal to 1/5 length of tail; relatively more pronounced upper and lower lobes with lower strongly convex. Distance between dorsal and caudal fins about equal to distance between first and second dorsal fins. Snout relatively short, generally less than 1/3 in disc-length (24% of disc length in 43.5 cm TL female, 25% in 48.5 cm TL), but never much greater than 1/3 as in B. moresbyi (ca 40% in lectotype); disc more rounded, not as elongated as in B. moresbyi (Ref. 48493).
Body shape (shape guide): other.
Inhabits neritic waters, on sandy bottoms (Ref. 557). Found on continental and insular slopes at 250-1,000 m depths; adults apparently at greatest depths (Ref. 114953). Solitary. Tiny eyes are covered with skin so that the species is blind (Ref. 557). Feeds on marine invertebrates. Both ovaries are functional in an adult female, with numerous small oocytes of ca. 2 mm in thin-walled uteri. Maturity size of males at ca. 16 cm TL; birth size at 8-9 cm TL (Ref. 114953).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Claro, R., 1994. Características generales de la ictiofauna. p. 55-70. In R. Claro (ed.) Ecología de los peces marinos de Cuba. Instituto de Oceanología Academia de Ciencias de Cuba and Centro de Investigaciones de Quintana Roo. (Ref. 26340)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
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Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5625 [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). |
Tingkat Trofik (Acuan 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Daya lenting (Acuan 120179) |
Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Assuming fecundity<100). |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low vulnerability (23 of 100). 🛈 |