Elasmobranchi (squali e razze) (sharks and rays) >
Torpediniformes (Electric rays) >
Platyrhinidae (Fanrays)
Etymology: Platyrhina: Greek, platys = flat + Greek, rhinos = nose. It is the same voice used for the Mammalian division made in Primates (Ref. 45335).
More on authors: Bloch & Schneider.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; oceanodromo (Ref. 51243). Subtropical; 25°N - 15°N, 105°E - 120°E (Ref. 114953)
Northwest Pacific: Chinese coast of Taiwan Strait and in the South China Sea to northern Vietnamese waters; not confirmed from Japanese, South Korean or Taiwanese waters (likely to occur in Taiwan).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 86.3 cm TL maschio/sesso non determinato; (Ref. 83530); common length : 50.0 cm TL maschio/sesso non determinato; (Ref. 637)
This species is distinguished from its congeners in having the following set of characters: two rows of thorns (strongly hooked and gradually becoming somewhat embedded toward first dorsal fin origin) on mid-dorsum of tail; no thorns at the anterior part of scapular region; thorns on the orbital, nape and scapular regions not encircled by light yellow or white pigment; dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch) (Ref. 86259).
Body shape (shape guide): other.
Found inshore (Ref. 9903), above 60 m on rock or rocky sand bottoms (Ref. 11230). Ovoviviparous (Ref. 50449). Biology little known (Ref. 9903).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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. and P.R. Last, 1999. Platyrhinidae. Thornback rays. p. 1431-1432. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Rome, FAO. (Ref. 9903)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Usi umani
Pesca: bycatch
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Livello trofico (Fonte Biblio. 69278) |
3.5 ±0.37 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec assumed to be <100). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate to high vulnerability (48 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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