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Teleostei >
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335).
More on author: Peters.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Brazil, near Rio de Janeiro (type locality).
南美洲: 巴西, 在里約熱內盧 (模式標本產地) 的附近.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.1 cm SL 雄鱼/尚未辨别雌雄; (Ref. 38397)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 2; 背的软条 (总数): 9; 臀棘 2; 臀鳍软条: 6; 脊椎骨: 36. Flat, scale-less breast, developed pectorals, slightly oblique eyes, only seen from above, and narrow interorbital; 3 unbranched pectoral rays and 1 unbranched pelvic ray; lateral line complete, adipose fin present, cheeks not covered, mouth with few, unicuspid teeth, numbering only 4 on the upper jaw. A rather broad, brown lateral stripe from snout to end of peduncle just above lateral line. 'Spines' are unbranched rays.
平坦的, 鳞片-被只有见到的被发展胸鳍，些微斜的眼的比较少的胸部从上方, 与狭窄的眼间骨; 3个不分枝的胸鳍鳍条与 1个不分枝的腹鳍鳍条; 侧线完整，有脂鳍 , 不被不涵盖嘴部具有少数的，单犬齿, 在上颌上只有数 4。 一条相当宽, 褐色侧面的斑纹在侧线的正上方从吻尖到梗的末端。 '棘' 是不分枝的鳍条。
A small, bottom living species. Not collected since more than 100 years, and thus it may well be endangered, if not extinct (Ref. 38397).
一种小的,底部活的种。 不自从超过 100 年以后收集了，而且如此它大概是濒临绝种的, 如果不是灭绝.(参考文献 38397)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 巴西, 在里約熱內盧 (模式標本產地) 的附近.
Géry, J., A. Zarske and H.J. Paepke, 2001. Supplementary description of two overlooked fish taxa, Leporinus macrolepidotus Peters, 1868, and Nanognathus borellii Boulenger, 1895, actually members of the genus Characidium Reinhardt, 1866 (Teleostei: Characiformes: Characidiidae. Zool. Abh. Mus. Tierkde. Dresden 51(3):23-31. (Ref. 38397)
人类利用
渔业: 没有兴趣
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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
