分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Gymnocharacinus: Greek, gymnos = naked + Greek, charax = the name of a fish (Ref. 45335).
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 亞熱帶的; 22°C - 26°C (Ref. 35685); 35°S - 36°S
South America: Valcheta stream in Rio Negro basin, Southern Argentina.
南美洲: 在尼格羅河流域的 Valcheta 水流, 南方阿根廷。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 3.8 range ? - ? cm
Max length : 7.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 38376)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 0; 背的软条 (总数): 12; 臀棘 0; 臀鳍软条: 19. Entirely naked (scale only shown on lateral line in specimens > 5 cm TL; head profile obtuse. Color is dark brown, greenish, the belly is cream; there is a copper-colored band on the flanks (Ref. 35685).
完全裸露 (只有在标本 >5 公分TL 中的侧联机显示的鳞片; 头部轮廓圆头的。 色彩是深褐色的，呈绿色的, 腹面是乳黄色的; 在侧面上有一条铜-色彩的条纹。 (参考文献 35685)
Medium sized fish considered to be the most southern characid living in temperate waters. Young with very tiny soft and delicate scales which are reabsorbed into the skin making the skin greasy and often with granulated or spongy appearance (Ref. 7252).
中等的被大小的鱼被认为是生活于温带的水域的最南方的脂鲤科鱼类了。 幼鱼有非常极小的柔软，而且娇弱的鳞片那是进入使皮肤成为油腻而通常有颗粒状或海棉状的外表的皮肤之内再吸收。 (参考文献 7252)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在尼格羅河流域的 Valcheta 水流, 南方阿根廷。
Ortubay, S. and V. Cussac, 2000. Threatened fishes of the world: Gymnocharacinus bergi Steindachner, 1903 (Characidae). Environ. Biol. Fishes 58:144. (Ref. 35685)
世界自然保护联盟红皮书 (Ref. 130435)
极度濒危 (CR) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 29 August 2017
人类利用
渔业: 没有兴趣; 水族馆: 商业性
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=0.00724 (0.00310 - 0.01692), b=3.18 (2.98 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Generation time: 1.7 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (tm=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
