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Silurus asotus Linnaeus, 1758

Image contributors to this species:

The Fishes of Taiwan (1) Frants Lehmann (1 Stamp) Zhou Hang (1) Karl-Heinz Dau (1 Stamp) Jean-Francois Helias (1) Nakamura, M; Keys to the Freshwater Fishes of Japan Fully Illustrated in Colors (1) Drake Shaw (3)

ScotCat Sources:

Other Sources:

Relevant Information:

Description: Dorsal soft rays (total): 4 - 4; Anal soft rays: 67 - 84. One pair of maxillary barbel, longer than the head; one pair of mandibular barbels, about 1/5-1/3 the length of the maxillary barbel. Habitat: Found in medium sized rivers and streams, usually in slowly running water over the muddy bottom. Colouration: The side of the dorsal is dark grey; white stomach; with irregular white dots on the side. Distinguished from the other species of the genus in Indochina by dark grey dorsal, white stomach and irregular white spots on the sides. Etymology: The specific name asotus: Presumably from ásotos, lustful, licentious, profligate, debauched or dissolute, allusion not explained, perhaps referring to its numerous teeth (“Dentes numerosi”); Jordan & Fowler (1903) say it means “a sot” (i.e., a drunkard).

Common Name:

Amur catfish

Synonyms:

Parasilurus asotus asotus, P. asotus, P. japonicus, Silurus dahuricus, S. punctatus, S. japonicus,S. cinereus, S. bedfordi

Family:

Siluridae

Distribution:

Asia: Honshu, Shikoku and Kyushu in Japan, the Korean Peninsula, Taiwan, China, and Russia.

Size:

90.0cm. (36ins)

Temp:

05-25°C (37-77F)

p.H.

6.0-8.0.

IUCN Red List

Silurus asotus is widespread with a stable and abundant population. Overfishing may represent a localised threat but is not thought to be leading to global declines. Therefore, this species is assessed as Least Concern, (IUCN 2022).

Reference:

Bogutskaya, N. & Huckstorf, V. 2022. Silurus asotus. The IUCN Red List of Threatened Species 2022.
Froese, R. and D. Pauly. Editors. 2009. FishBase. World Wide Web electronic publication. www.fishbase.org, version (10/2010).
Kobayakawa, M., 1989. Systematic revision of the catfish genus Silurus, with description of a new species from Thailand and Burma. Jap. J. Ichthyol. 36(2):155-186.
Serov, D.V.; Nezdoliy, V.K.; Pavlov, D.S. The Freshwater Fishes of Central Vietnam. Moscow, Nha Trang 2006. 362p.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.

Family: Siluridae Back to Ident-A-Cat Click on Thumbnails

Silurus asotus

Silurus asotus
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Silurus asotus

Silurus asotus
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Silurus asotus

Silurus asotus
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