分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Cichlinae
Etymology: Crenicichla: Latin, crenulatus = cut, clipped + Greek, kichle = wrasse (Ref. 45335); tuca: The specific name tuca is a Guaraní word (tucá), meaning toucan (Ramphastos) in reference to the similarly enlarged lips/beak.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性.
South America: Lower Iguazú River basin above the Iguazú Falls in Argentina. Distributional range extends upstream of the Misiones Province, Argentina into the neighboring state of Paraná, Brazil.
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 104794)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 20; 背的软条 (总数) : 10 - 12; 臀棘: 3; 臀鳍软条: 8 - 9.
All specimens, except two, were collected in the main channel of the Iguazú River, where they occurred as single individuals among the rocks from the walkways over the river ramming their heads and thick lips against the rock surfaces (Ref. 104794).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Piálek, L., K. Dragová, J. Casciotta, A. Almirón and O. Říčan, 2015. Description of two new species of Crenicichla (Teleostei: Cichlidae) from the lower Iguazú River with a taxonomic reappraisal of C. iguassuensis, C. tesay and C. yaha. Historia Natural 5(2):5-27. (Ref. 104794)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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=0.00851 (0.00310 - 0.02339), b=3.09 (2.85 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.5 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).