分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335); varii: Named for Richard Vari of the Smithsonian Institution in recognition of his contributions to the knowledge of South American fishes, especially on Creagrutus systematics..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: upper Rio Paranaiba basin in Brazil.
南美洲: 在巴西的上面 Rio Paranaiba 流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52412)
简单描述
型态特徵 | 形态测量图
脊椎骨: 37 - 38. Distinguished from congeners in having a maxilla with a relatively slender anterior process and a posterior portion transversely compressed; a maxilla which lacks a distinct flexion in the region where it extends past the posterior limit of the premaxilla; a primordial ligament that is relatively flat transversely and attaches to the posteromedial process of the ascending process of the maxilla; the mesopterygoid and metapterygoid overlapping along their area of contact; a quadrate without a variably developed vertical ridge or process extending dorsally from the main body of the quadrate in, and posterior to, the region where the posterodorsal process of the quadrate contacts the anteroventral process of metapterygoid; and presence of the temporal foramen. Differs further in having two rows of teeth on the premaxilla, with two conical teeth in the outer row (Ref. 52412).
在有一个方面与同类区分了颚骨具有一个相当细长的前面突起与在后部的部分横着扁长形; 在区域中缺乏一个明显的弯曲的一个颚骨在那里它越过前颌骨的后面的限制延伸; 一个原始的结带，那是相当平坦的横着而且吸附到 posteromedial 突起身上那颚骨向上突起; 中翼骨与 metapterygoid 部分重迭的沿着他们的接触在一起的区域; 一个方骨易变地没有发展垂直的脊或者突起延伸背面方骨的从主要部份身体在, 而且在,后面方骨的背部后方突起连络 metapterygoid 的前腹突起的区域; 而且有当时的孔。 不同進一步有兩列的牙齒在前頜骨, 在外部的列中有兩個錐形齒.(參考文獻 52412)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在巴西的上面 Rio Paranaiba 流域。
Ribeiro, A.C., R.C. Benine and C.A. Figueiredo, 2004. A new species of Creagrutus Günther (Teleostei: Ostariophysi: Characiformes) from the upper Rio Paraná basin, central Brazil. J. Fish Biol. 64(2):597-611. (Ref. 52412)
人类利用
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.6 ±0.1 se; based on size and trophs of closest relatives
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).
