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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
生態學
; 淡水 底中水層性. 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 38397)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 2; 背的軟條 (總數): 9; 臀棘 2; 臀鰭軟條: 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, 鱗片-被只有見到的被發展胸鰭，些微斜的眼的比較少的胸部從上方, 與狹窄的眼間骨; 3個不分枝的胸鰭鰭條與 1個不分枝的腹鰭鰭條; 側線完整﹐有脂鰭 , 不被不涵蓋嘴部具有少數的，單犬齒, 在上頜上只有數 4。 一條相當寬, 褐色側面的斑紋在側線的正上方從吻尖到梗的末端。 '棘' 是不分枝的鰭條。
A small, bottom living species. Not collected since more than 100 years, and thus it may well be endangered, if not extinct (Ref. 38397).
一種小的,底部活的種。 不自從超過 100 年以後收集了，而且如此它大概是瀕臨絕種的, 如果不是滅絕.(參考文獻 38397)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
人類使用
漁業: 沒有興趣
更多資訊
俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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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).
營養階層 (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
