Parauchenoglanis ngamensis (Boulenger, 1911)
Zambezi grunter
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Parauchenoglanis ngamensis
图片提供人 Geerinckx, T.
照片 | 谷歌图片
图片提供人 Geerinckx, T.
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Siluriformes (Catfishes) > Auchenoglanididae (Flatnose catfishes)
Etymology: Parauchenoglanis: Greek, para = near + Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); ngamensis: Named after the country of its type locality, Lake Ngami, Botswana.
More on author: Boulenger.
Etymology: Parauchenoglanis: Greek, para = near + Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); ngamensis: Named after the country of its type locality, Lake Ngami, Botswana.
More on author: Boulenger.
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; pH range: 6.2 - 7.5; dH range: 4 - 25. 熱帶; 22°C - 26°C (Ref. 2059)
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: Okavango and upper Zambezi (sub)basins): Angola, Botswana, Namibia, and Zambia.
非洲: 奧塔萬戈河, 三比西上游與 Kasai 河流域。
非洲: 奧塔萬戈河, 三比西上游與 Kasai 河流域。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 7 - 8; 臀鳍软条: 8 - 11; 脊椎骨: 34 - 36. This species is distinguished from its congeners ahli, altipinnis, balayi, buettikoferi, longiceps, monkei, pantherinus, punctatus by having a broad humeral process (vs. pointed); further differs from altipinnis, balayi, pantherinus, punctatus by having a coarse skin (vs. smooth); further differs from buettikoferi, monkei with the anterior margin of the pectoral-fin spine being mostly smooth (vs. serrated from base to tip); further differs from ahli, punctatus by having shorter barbels, with external mandibular barbel not reaching the distal tip of the pectoral fin (vs. barbels long, with external mandibular barbel reaching distal tip of pectoral fin or beyond); differs from zebratus by the broad humeral process which is clearly visible through the skin and presence of five to seven bars on small specimens (?100 mm SL) and vertical rows of spots on larger-sized specimens (vs. broad humeral process embedded under the skin and four to five vertical rows of spots on small specimens, and bars on larger-sized specimens); differs from stiassnyae by having vertical rows of black spots interspaced by scattered smaller black spots (vs. irregularly scattered large blotches and absence of smaller spots on the flank), and having shorter barbels, external mandibular barbel not reaching the distal tip of the pectoral-fin spine (vs. longer barbels, external mandibular extending beyond tip of the pectoral-fin spine).Parauchenoglanis ngamensis is distinguished from the other members of the P. ngamensis group, i.e. patersoni, dolichorhinus, luendaensis, chiumbeensis, by the presence of scattered black spots in between the vertical rows of black spots (vs. absent); further distinguished from these species by having a heavily spotted head and fins (vs. unspotted head and fins in luendaensis; few black spots or unspotted head and fins in patersoni, dolichorhinus, and head and fins with faint black spots in chiumbeensis); further distinguished from chiumbeensis, luendaensis by having a round caudal fin (vs. truncated); differs from ernstswartzi, megalasma by the vertical rows of black spots (vs. vertical rows of black blotches) and bluntly triangular snout (vs. round in ernstswartzi and partly round in megalasma); differs further from ernstswartzi by the eyes situated dorsolateral (vs. eyes situated dorsally, i.e. high on the head towards its upper edge) and absence of black spots at the base of pectoral fin (vs. present); differs from lueleensis by the presence of numerous black spots in between vertical rows (vs. one or two spots present in between vertical rows); differs from poikilos by having a rounded caudal fin (vs. truncated) and the absence of crescent-shaped marking on the caudal-fin base (vs. presence) (Ref. 132425).
Cross section: oval.
Cross section: oval.
It prfers rocky habitats or marginal vegetation in slow-flowing rivers and lagoons, often taking shelter under trees (Ref. 52193). It feeds on small fishes and invertebrates like snails, shrimps and insects (Ref. 52193). Eggs are large and relatively few, suggesting parental care, but no details are know (Ref. 52193). It 'grunts' when removed from the water (Ref. 7248, 52193).
在缓慢流动的河川与泻湖中喜欢岩石的栖息地或杂草丛, 时常占据在树下面的庇护所。 食物由小鱼与像蜗牛，虾与昆虫的无脊椎动物组成。 卵是大而相当少见的, 建议亲代养育，但是没有细节已知是。 '石鲈' 当采离开水面.(参考文献 7248)
在缓慢流动的河川与泻湖中喜欢岩石的栖息地或杂草丛, 时常占据在树下面的庇护所。 食物由小鱼与像蜗牛，虾与昆虫的无脊椎动物组成。 卵是大而相当少见的, 建议亲代养育，但是没有细节已知是。 '石鲈' 当采离开水面.(参考文献 7248)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 奧塔萬戈河, 三比西上游與 Kasai 河流域。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Sithole, Y., E.J.W.M.N. Vreven, P.H.N. Bragança, T. Musschoot and A. Chakona, 2024. Nine in one: integrative taxonomic evidence of hidden species diversity in the widespread Zambezi grunter, Parauchenoglanis ngamensis (Siluriformes: Auchenoglanididae), from southern and south-central Africa. Zool. J. Linn. Soc. 202:1-33. (Ref. 132425)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
渔业: 低经济; 水族馆: 潜在的
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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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00617 (0.00276 - 0.01377), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
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营养阶层 (参考文献 69278) |
3.6 ±0.58 se; based on food items. |
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回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
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渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (41 of 100). 🛈 |
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价格分类 (Ref. 80766) |
Unknown. |