Silurus asotus, Amur catfish : fisheries, aquaculture

Silurus asotus Linnaeus 1758

Amur catfish
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Silurus asotus
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Classification / Names आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfish) > Siluridae (Sheatfishes)
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).  More on author: Linnaeus.

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

; स्वच्छ जल, अलवण जल ड़िमरसल.   Temperate; 5°C - 25°C (Ref. 13614); 53°N - 23°N, 95°E - 143°E

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

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

Length at first maturity / आकार / वज़न / Age

Maturity: Lm ?, range 35 - 37 cm
Max length : 130 cm TL पुल्लिंग / अलिंग; (Ref. 56557); common length : 37.0 cm SL पुल्लिंग / अलिंग; (Ref. 35840); अधिकतम प्रकाशित वज़न: 30.0 kg (Ref. 56557)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय सौफट रेज़ (सम्पूर्ण): 4; ऐनल सौफट रेज़: 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).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

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).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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.

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

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)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 03 August 2010

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

मात्स्यिकी: व्यापारिक; जलीयकृषि: व्यापारिक
FAO(जलीयकृषि: production; ; publication : search) | FishSource |

अधिक जानकारी

आम नाम
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Egg development
जलीयकृषि रूपरेखा
ऐल्लि आवृतियाँ
Mass conversion
Stamps, Coins Misc.
तैरने के प्रकार
गिल क्षेत्र


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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00480 - 0.00690), b=3.01 (2.96 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.3 se; based on diet studies.
Generation time: 10.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (tm=4-5; K=0.11).
Vulnerability (Ref. 59153):  High to very high vulnerability (65 of 100) .
Price category (Ref. 80766):   Unknown.