Coreobagrus ichikawai Okada & Kubota, 1957
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Coreobagrus ichikawai
图片提供人 Watanabe, K.
照片 | 谷歌图片
图片提供人 Watanabe, K.
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Siluriformes (Catfishes) > Bagridae (Bagrid catfishes)
Etymology: Coreobagrus: Greek, kore, -es = pupil and also with themenaing of "maid" + mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp) (Ref. 45335).
Eponymy: Dr Atsuhiko Ichikawa (1904–1991) was a Japanese platyhelminthologist. [...] (Ref. 128868), visit book page.
Etymology: Coreobagrus: Greek, kore, -es = pupil and also with themenaing of "maid" + mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp) (Ref. 45335).
Eponymy: Dr Atsuhiko Ichikawa (1904–1991) was a Japanese platyhelminthologist. [...] (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 底中水层性. 溫帶; 35°N - 34°N
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Asia: endemic to the streams in the Mie Prefecture, Honshu Island, Japan.
亞洲: 在三重縣府，本州島，日本中的溪流的特有種。
亞洲: 在三重縣府，本州島，日本中的溪流的特有種。
首次成熟时的长度 / 大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 1; 背的软条 (总数) : 6 - 7; 臀棘: 0; 臀鳍软条: 14 - 16. Resembles Pelteobagrus nudiceps in having a slightly notched posterior caudal fin margin, but distinguished by having a shorter body and fewer fin rays.
Body shape (shape guide): elongated; Cross section: circular.
在有一个方面与 叉尾黄颡鱼［Pelteobagrus nudiceps］ 相似微凹在后部的尾鳍边缘, 但是藉着有一个较短的身体与较少的鳍条区别了。
Body shape (shape guide): elongated; Cross section: circular.
在有一个方面与 叉尾黄颡鱼［Pelteobagrus nudiceps］ 相似微凹在后部的尾鳍边缘, 但是藉着有一个较短的身体与较少的鳍条区别了。
Oviparous (Ref. 205). Eggs are guarded by the male (Ref. 45232).
卵生的.(参考文献 205) 卵被由雄鱼保卫。 (参考文献 45232)
卵生的.(参考文献 205) 卵被由雄鱼保卫。 (参考文献 45232)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Observed from an aquarium, mature males swam around the shelter before spawning, sometimes digging the substrate under the shelter by beating their tail. Although males did not show features of parental care such as fanning or egg-cleaning in an aquarium condition, they continued to tend the shelter and attack other fish introduced to the aquarium.
Once a ripe female was introduced to a male aquarium, the male starts to pursue the female, nudging its belly. The female is then led to or visited voluntarily the male shelter. Subsequently, either in the shelter (usually) or outside, the male wraps its body around the head and abdomen of the female, with the female's head against the male's caudal peduncle. The pair remain in this position for 5.2-9.2 seconds (6.1-7.8 seconds on the average for each pair). The female, firmly held by the male's pectoral, pelvic, anal and caudal fins, slowly beats its caudal fin during the embrace. The embrace is terminated by spawning, with the female often turning its abdomen upwards when releasing eggs. Neither conspicuous ejaculatory behavior by the male nor turbidity caused by the semen was observed. Immediately after spawning, the female stirs the eggs by quickly swinging its body, leaves the spawning site afterwards or is chased away by the male.
After several minutes, the female either returns voluntarily or is led back by the male to the shelter, repeating the same behavioral pattern all over again. The mean interval between successive spawnings ranged from 1.7-7.0 mins.
It was also observed that immediately following spawning, all males were observed to forage for eggs.亞洲: 在三重縣府，本州島，日本中的溪流的特有種。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (B1ab(i,ii,iii,iv,v)); Date assessed: 01 March 2018
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
FAO - Publication: search | FishSource |
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基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
4.0 ±0.50 se; based on food items. |
| Generation time | 1.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (tm=2-3; tmax=4; K=0.5). |
|
渔业脆弱性 (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |