分类 / Names
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.
Environment: milieu / climate zone / depth range / distribution range
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
Maturity: Lm ? range ? - ? cm
Max length : 2.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 189)
简单描述
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.
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。
Life cycle and mating behavior
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)
人类利用
渔业: 没有兴趣
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00253 - 0.01141), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.35 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
