Elasmobranchi (squali e razze) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).
More on author: Richardson.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale. Temperate; 37°N - 17°N, 107°E - 137°E (Ref. 114953)
Northwest Pacific: southern Japan and southwest Korea to Vietnam, including Taiwan.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 44.5, range 39 - 56 cm
Max length : 53.0 cm TL maschio/sesso non determinato; (Ref. 6933); 62.0 cm TL (female)
Dwells near shore in sandy mud bottoms (Ref. 11230). Caught throughout the year in coastal waters of southern China. Feeds on small benthic animals. Ovoviviparous (Ref. 50449). Males mature at 38-40 cm TL, females at 39-44 cm TL; born at ca. 16 cm TL. Produces litters of 2-9 pups (Ref. 114953). Used as `kamaboko' material (Ref. 637).
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). Off southern China, the gestation period is about one year and parturition takes place in June or July.
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00309 (0.00193 - 0.00494), b=3.04 (2.90 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.5 ±0.37 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Fec=2). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Low.
|