分类 / Names
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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).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 溫帶; 35°N - 34°N
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。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 6 - ? cm
Max length : 10.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 48378); 最大年龄: 4 年 (Ref. 48378)
简单描述
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.
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)
Life cycle and mating behavior
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。
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00384 - 0.01800), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
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 (Ref.
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).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
