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: Knodus: Greek, knodon, -ontos = knife, sword (Ref. 45335); geryi: Named after Jacques Géry, in recognition of his enormous contribution to the knowledge of the characiform fishes..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: rio do Peixe in the upper rio Paraguay basin, Brazil.
南美洲: rio 在上面的 rio 巴拉圭流域巴西中做 Peixe 。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55831)
简单描述
型态特徵 | 形态测量图
背的软条 (总数): 10; 臀鳍软条: 18 - 20; 脊椎骨: 38 - 39. Differs from all congeners and from all remaining characid fishes by having two symmetric, large dark blotches basally on caudal fin lobes (Ref. 55831).
有别于所有的同类而且从所有的剩余脂鲤科鱼类鱼在尾鳍叶上基部地借着具有二个对称又大的黑色斑块。 (参考文献 55831)
描述: 背鳍鳍条 ii,8; 臀鳍棘条 iii,15, 16 或 17; 胸鳍鳍条 i,11, 12 或 13; 腹鳍鳍条 i,7.(参考文献 55831)
Inhabits small river with transparent waters, very channeled and relatively deep (> 2 m deep in some points), having both rapids and waterfalls (Ref. 55831). Feeds on vegetal matter and insects (Ref. 55831).
用透明的水域栖息于小的河, 非常水道与相当深的 (>2 公尺深在一些点), 有急流和瀑布.(参考文献 55831) 吃植物的事件与昆虫。 (参考文献 55831)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: rio 在上面的 rio 巴拉圭流域巴西中做 Peixe 。
Lima, F.C.T., H.A. Britski and F.A. Machado, 2004. New Knodus (Ostariophysi: Characiformes: Characidae) from the upper Rio Paraguay basin, Brazil. Copeia 2004(3):577-582. (Ref. 55831)
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=0.00813 (0.00436 - 0.01515), b=3.07 (2.91 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.40 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).
