分類 / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii 輻鰭魚綱 (條鰭魚)
(Catfish) 鯰形目 (Catfish)
(Sheatfishes) 鯰科 (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
; 淡水 居於水底的. 溫帶; 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.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 35 - 37 cm
Max length : 130 cm TL 雄魚/尚未辨別雌雄; (Ref. 56557); common length : 37.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 35840); 最大體重: 30.0 kg (Ref. 56557)
背的軟條 (總數): 4; 臀鰭軟條: 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).
背部的側邊顏色較深灰色的; 腹面白色的; 側邊上有不規則的白色點。 一對上頜骨觸鬚, 長度超過頭部; 一對顎骨觸鬚, 大約 1/5-1/3 顎觸鬚的長度.(參考文獻 40516)
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).
商業地在日本養殖。 吃所有類型的魚。 (參考文獻 41072)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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.歐洲與亞洲: 日本本州，四國與九州，朝鮮半島，台灣，中國與俄國。
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)
CITES (Ref. 118484)
漁業: 商業性; 養殖: 商業性
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00489 - 0.00709), b=3.01 (2.96 - 3.06), in cm Total Length, based on LWR estimates for this species (Ref. 93245
營養階層 (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.
回復力 (Ref. 120179
): 低的, 最小族群倍增時間4.5 - 14 年 (tm=4-5; K=0.11).
瀕危性 (Ref. 59153
): High to very high vulnerability (65 of 100) .