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Torpediniformes (Electric rays) >
Platyrhinidae (Fanrays)
Etymology: Platyrhinoidis: Greek, platys = flat + Greek, rhinos = nose + Greek, oides = similar to (Ref. 45335).
More on authors: Jordan & Gilbert.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut dasar (demersal); kisaran kedalaman 0 - 137 m (Ref. 96339). Subtropical; 38°N - 23°N, 124°W - 108°W (Ref. 114953)
Eastern Pacific: San Francisco, USA to Baja California, Mexico.
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm ?, range 48 - ? cm
Max length : 91.0 cm TL jantan/; (Ref. 2850)
Inhabits fine sand to mud bottom, often near kelp beds and sometimes abundant on mud flats of coastal bays. Often buries itself in bottom sediments. Ranges from the intertidal zone to 50 m depth (Ref. 12951). Solitary or in small groups, gathers in shallow bays, lagoons, and off beaches (Ref. 12951, Ref. 114953). Feeds on small sand-dwelling crustaceans, worms and mollusks. Ovoviviparous (Ref. 50449), with 1 to 15 pups in a litter (Ref. 48844), mainly in August (Ref. 114953). Possesses ampullary electroreceptors with a region of maximum sensitivity of 5-15 Hz (Ref. 10011).
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).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Suhu yang disukai (Acuan
123201): 15.3 - 23.1, mean 20.6 °C (based on 38 cells).
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 1.0312 [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).
Tingkat Trofik (Acuan
69278): 3.4 ±0.42 se; based on food items.
Daya lenting (Acuan
120179): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Fec = 1).
Kerentanan Penangkapan Ikan (Ref.
59153): High vulnerability (56 of 100).
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