Squatina japonica Bleeker, 1858

Japanese angelshark

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Elasmobranchii \| Squatiniformes \| Squatinidae
Synonyms	... more
Common names	Ange de mer Kasuzame, Angelote japonés, Change angel shark, ... more

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Image of Squatina japonica (Japanese angelshark)

Picture by FAO

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Main reference

Compagno, L.J.V. 1984. (Ref. 247)
Other references | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators

Size / Weight / Age

Max length : 200 cm TL male/unsexed; (Ref. 247)

Environment

Demersal; marine

Climate / Range

Subtropical; 41°N - 19°N, 111°E - 139°E (Ref. 54906)

Northwest Pacific: Japan, Yellow Sea, Korea, and northern China.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 0. Japanese angelshark Squatina japonica has broad pectoral fins with rounded free rear tips, posterior margin nearly straight, inner margin strongly convex; nasal barbels simple and spatulate. Anterior nasal flaps smooth to weakly fringed; dermal folds on sides of head without lobes. Rear tip of inner margin of pelvic fins considerably anterior to origin of first dorsal; very short hypocercal tail. Rows of moderately large spines on midline of back and tail from head to dorsal fins and between fin bases, and on snout and above eyes. Body color blackish brown with small dark and pale spots; no ocelli (eye-like spot) (Ref. 247, 31369, 12951).

A little-known angelshark, found on or near the bottom (Ref. 247). Lives in sandy ground. A carnivore that eats benthic animals (Ref. 9137). Ovoviviparous (Ref. 50449). Utilized for human consumption and for preparation of shagreen (Ref. 247).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Traumatogenic

Human uses
Fisheries: minor commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (77 of 100)	Medium

Entered by Carpenter, Kent E.

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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