Silurus asotus, Amur catfish : fisheries, aquaculture

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Silurus asotus Linnaeus, 1758

Amur catfish
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Silurus asotus
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > 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 生态学

; 淡水 居于水底的.   溫帶; 5°C - 25°C (Ref. 13614); 53°N - 23°N, 95°E - 143°E

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia: Honshu, Shikoku and Kyushu in Japan, the Korean Peninsula, Taiwan, China, and Russia.
亞洲: 日本本州,四國與九州,朝鮮半島,台灣,中國與俄國。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 35 - 37 cm
Max length : 130 cm TL 雄鱼/尚未辨别雌雄; (Ref. 56557); common length : 37.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 35840); 最大体重: 30.0 kg (Ref. 56557)

简单描述 型态特徵 | 形态测量图

背的软条 (总数): 4; 臀鳍软条: 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).
背部的侧边颜色较深灰色的; 腹面白色的; 侧边上有不规则的白色点。 一对上颌骨触须, 长度超过头部; 一对颚骨触须, 大约 1/5-1/3 颚触须的长度.(参考文献 40516)

生物学特性     字汇 (例如 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).

商业地在日本养殖。 吃所有类型的鱼。 (参考文献 41072)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

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.亞洲: 日本本州,四國與九州,朝鮮半島,台灣,中國與俄國。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 120744)

  最不相关 (LC) ; Date assessed: 03 August 2010

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 商业性; 养殖: 商业性
FAO(养殖: 产生; ; publication : search) | FishSource |

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俗名
同种异名
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生态毒物学
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孕卵数

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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=0.00589 (0.00489 - 0.00709), b=3.01 (2.96 - 3.06), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
营养阶层 (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.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (tm=4-5; K=0.11).
脆弱性 (Ref. 59153):  High to very high vulnerability (65 of 100) .
价格分类 (Ref. 80766):   Unknown.