Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Eponymy: The original description has no etymology, but the binomial is not an eponym: it is derived from the Japanese name for the skate, which is keno-ei. (See Zuge for a similar case). (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino demersal; oceanodromo (Ref. 51243); rango de profundidad 20 - 230 m (Ref. 106604). Temperate
Northwest Pacific: Japan, Korea and Taiwan (Ref. 8630). Appears to be confined to the continental shelf off Japan and in the China Seas south to about Xiamen (Ref. 47737).
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ?, range 39 - ? cm
Max length : 57.0 cm TL macho / no sexado; (Ref. 111281); peso máximo publicado: 815.70 g (Ref. 125279)
Bottom-dweller that feeds on invertebrates and bony fish. Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 4.8-6.6 cm long and 2.9-3.7 cm wide (Ref. 41249, 41253, 41298). Depth range given by H. Ishihara (pers.comm. 07/07).
Oviparous, paired eggs are laid mainly at night (Ref. 44760). Batches of eggs are laid in three to six-day interval on sand bottom. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Usos humanos
Pesquerías: comercial
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00288 (0.00175 - 0.00476), b=3.23 (3.10 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.4 ±0.5 se; based on diet studies. |
Resiliencia (Referencia 120179) |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec = 40-150;). |
Vulnerabilidad pesquera (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Medium.
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