Teleostei >
Clupeiformes (Herrings) >
Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Pellonula: Latin, pellis = skin + Latin, nullus = no one (Ref. 45335).
More on author: Günther.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋; 淡水; 半咸淡水 大洋性; 溯河洄游 (Ref. 138280). 熱帶; 13°N - 13°S
Africa: lagoons and lower parts of rivers from Liberia to Angola (Ref. 188, 2244, 28136, 81269, 81631), also in Guinea-Bissau (Ref. 3033); however it seems to be absent in the area between Ghana and Niger River Delta (Ref. 2244, 28136), except for Lake Nokoué (Ref. 81269). This species was not observed far upstream rivers (Ref. 2244), although it has been found recently in Léfini River, part of Middle Congo River basin (Ref. 88782). The type locality of the syntypes of the nominal species Pellonula stanleyana, 'Stanley Falls' (Ref. 2263), seems to be an erroneous locality (Ref. 188), and should be 'Cette Cama [= Sette Cama]' in Gabon (Ref. 2244).
非洲: 在河中從賴比瑞亞到安哥拉。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 12.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 188)
背棘 (总数) : 0; 背的软条 (总数) : 15 - 19; 臀棘: 0; 臀鳍软条: 16 - 21; 脊椎骨: 42 - 43. Diagnosis: Body moderate or fairly deep, its depth 23-30% of standard length; 1 or more scutes beginning in front of base of first pectoral finray, with 11-16 pre-pelvic and 8-11 post-pelvic scutes, and a total of 20-25 scutes, first pre-pelvic scute always longer and better developed than following scutes lacking ascending arms; lower jaw slightly projecting, teeth at symphysis large in large specimens; pre-maxilla teeth well-developed, fairly straight and outward pointing, an indented toothless gap at centre of jaw; lower gillrakers 24-37, equal to or longer than corresponding gill filaments; silver stripe along flank (Ref. 188, 2244, 81269, 81631). It resembles Pellonula leonensis, which has small and inward-curving teeth and no pre-pectoral scutes (Ref. 188, 81269, 81631). The absence of large canine teeth in the upper jaw distinguishes it from Odaxothrissa (Ref. 188).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
身体中等纵深的, 扁长形的。 在峡部的鳞甲 (20 到 25 总数) 开始, 第一个通常长的; 12-16 腹鳍前的; 8-10 postpelvic。 些微地在前面或在后腹鳍的嵌入的第一背鳍鳍条。 胸鳍长度通常超过一半的胸-腹鳍距离。 第一臀鳍鳍条显着地插在最后背鳍鳍条的水平后面了。 下颌些微突出, 在愈合处的齿大的较大时鱼; 前上颚齿强的, 非常直的, 在颌的中心的一些鱼与一个凹入的无齿间隙朝前。 下鳃耙长的。 银色的斑纹沿着侧面。 与 21-26个腹部的脊椎骨; 17-23个尾部的脊椎骨; 10-12 前背骨。 颜色在黄褐色与黄色的灰色之间改变当保存在酒精中时。
Adults are found in rivers and streams (Ref. 188). They form large schools in lower courses of rivers (Ref. 2244, 43836), and are very abundant in brackish water habitat (Ref. 86940).
出现于河川与溪流。 在下面的范围方面形成大群鱼群。
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: 在河中從賴比瑞亞到安哥拉。
Gourène, G. and G.G. Teugels, 1991. Révision du genre Pellonula des eaux douces africaines (Pisces: Clupeidae). Ichthyol. Explor. Freshwat. 2(3):213-225. (Ref. 2244)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 自给性渔业
工具
特别资料
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网络资源
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]. |
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Bayesian length-weight
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a=0.00871 (0.00415 - 0.01826), b=3.06 (2.89 - 3.23), 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) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec < 1,000). |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |
价格分类 (Ref. 80766) |
Low.
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