Classification / Noms
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Temperate; 5°C - 25°C (Ref. 13614); 53°N - 23°N, 95°E - 143°E
Asia: Honshu, Shikoku and Kyushu in Japan, the Korean Peninsula, Taiwan, China, and Russia.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 36.0, range 35 - 37 cm
Max length : 130 cm TL mâle / non sexé; (Ref. 56557); common length : 37.0 cm SL mâle / non sexé; (Ref. 35840); poids max. publié: 30.0 kg (Ref. 56557)
Rayons mous dorsaux (Total) : 4; Rayons mous anaux: 67 - 84. The side of the dorsal is dark grey; white stomach; with irregular white dots on the side. 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 (Ref. 40516).
Body shape (shape guide): elongated; Cross section: oval.
Commercially cultured in Japan. Adults feed on all types of fish (Ref. 41072). Recorded as having been or being farmed in rice fields (Ref. 119549).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Pairs manifest spawning embrace widely observed in other catfish species (Ref. 37360).
Details of reproductive behaviour from Katano, et al (1988): " A male first energeticaly pursued a female with its head near to the female's belly (chasing) and then began to cling to the female's body from the side, bending its tail or head (clinging). Finally the male enfolded the female's body, with its anus near to the female's (enfolding). In some cases, 2-4 males pursued a single female and two males enfolded a female at the same time. Although no aggressive behaviour was evident between males, it was always the largest male that could almost frequently approach and enfold the female. The mating pair moved a long distance in a ditch, paddy field and/or creek, performing reproductive activities."
The scattering of eggs may reduce the incidence of death of the young.
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. (Ref. 9417)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; Aquaculture: commercial; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 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=0.00589 (0.00503 - 0.00690), b=3.01 (2.96 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.4 ±0.3 se; based on diet studies. |
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Generation time |
10.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (tm=4-5; K=0.11). |
Vulnérabilité de la pêche (Ref. 59153) |
High to very high vulnerability (65 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Unknown.
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