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Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Anacanthobatidae (Smooth skates)

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; depth range 500 - 1100 m (Ref. 9905). Deep-water; 31°N - 4°N, 109°E - 130°E (Ref. 114953)

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Northwest Pacific: Vietnam to southern Japan, including Taiwan, Hongkong and Philippines (Ref. 114953).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 59.0 cm TL male/unsexed; (Ref. 9905)

Maximum width at least 38 cm. Seldom caught. Utilization for human consumption limited (Ref. 9905). Found in soft, sandy bottoms; by-catch of trawls and usually discarded because of its small size (Ishihara, pers.comm. 07/07). Males reaches maturity at ca. 53 cm TL (Ref. 114953)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 06 May 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: bycatch

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 6.3 - 8.2, mean 6.5 °C (based on 11 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [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).

Trophic level (Ref. 69278): 3.8 ±0.49 se; based on food items.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Price category (Ref. 80766): Medium.

Sinobatis melanosoma (Chan, 1965)