分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Clupeiformes (Herrings)
鯡目 (Herrings) >
Engraulidae (Anchovies)
鯷科 (Anchovies) > Engraulinae
Etymology: Amazonsprattus: Composed from river Amazon + old English sprot, a small sea fish; 1597 (Ref. 45335).
More on author: Roberts.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 大洋性. 熱帶; 0°S - 3°S
South America: endemic to the Amazon system (Rio Jufari between Castanheiro Grande and Santa Fé, also Rio Negro at Santa Isabel).
南美洲: 亞馬遜河流域的特有種.(在 Castanheiro Grande 與 Santa Fe 之間的 Rio Jufari, 也在聖伊莎貝拉的尼格羅河)
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 2.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 189)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 臀棘: 0; 臀鳍软条: 12 - 14. Mouth small, pre-maxillae absent or minute and toothless; maxilla very short, just reaching to front border of eye, with two supra-maxillae; articulation of lower jaw under hind border of pupil or just behind. Dorsal fin origin well behind midpoint of body; anal fin origin under first quarter of dorsal fin base. In life translucent or even transparent.
Body shape (shape guide): elongated; Cross section: compressed.
嘴小的, 前颚不存在或细小而无齿的; 颚骨非常短的, 正好延伸到眼的前缘, 有两个上颚; 在瞳孔的后部边缘下面的下颌的关节或在。正后方 背鳍起点在身体中央正后方; 在背鳍基底的第一四分之一下面的臀鳍起源。 活着时半透明的或平坦的透明。
A riverine species collected some distance up a low-gradient swampy tributary of the Rio Negro (the Rio Jufari), Brazil and in the main river, in both cases the water generally darkly tinted, acid (pH 4-5) and low in dissolved ions. Feeds on dipteran larvae and pupae; also cladocerans. Males mature at 1.43-1.62 cm SL; females at 1.59-1.82 cm. Ovarian eggs are creamy or pale orange. A female of 1.73 cm had 20 eggs in the single ovary in January.
一个河栖性鱼种采集自巴西的 Rio Negro 的一个坡度缓之沼泽支流向上一些距离了与在主要的河中, 在情况中水通常暗上色, 酸的 (酸硷度 4-5) 与离子溶解度低。 吃双翅类昆虫的幼生与蛹; 也捕食水蚤。 雄性在 1.43-1.62 公分 SL 时成熟; 雌性在 1.59-1.82 公分。 卵巢的卵是乳脂色或淡橘色。 1.73 公分的一条母鱼在一月在单一卵巢中有 20个卵。
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
A female of 1.73 cm has 20 eggs in the single ovary in January.南美洲: 亞馬遜河流域的特有種.(在 Castanheiro Grande 與 Santa Fe 之間的 Rio Jufari, 也在聖伊莎貝拉的尼格羅河)
Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (Suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/2):305-579. Rome: FAO. (Ref. 189)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
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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 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00247 - 0.01115), b=3.14 (2.97 - 3.31), 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) |
3.2 ±0.35 se; based on food items. |
回复力 (参考文献 120179) |
高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.). |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |