Issue
Weitzman & Ortega (1995). See Weitzman & Menezes (1998) for relationships.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce pelágico(a,os,as). Tropical; 23°C - 26°C (Ref. 26646)
South America: Manu and Tambopata River basins in Peru.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 1.6 cm SL macho/indeterminado; (Ref. 26646)
Raios dorsais (total) : 9 - 10; Raios anais : 19.
Inhabits small black water streams in areas forested by the palm Maurita flexuosa. Usually occurs in the gallery forest areas in pools of small streams of 2-4m wide. The water depth where this species occurs is usually 20-60cm and the current is slow. The bottom is usually sandy but may be pebbly and with much forest debris. Commonly found near the shoreline where they can seek protection from predators among vegetation. Commonly swims near the surface of the water in schools of about 20 to 80 individuals.
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Weitzman, S.H. and H. Ortega, 1995. A new species of Tyttocharax (Teleostei: Characidae: Glandulocaudinae: Xenurobryconini) from the Rio Madre de Dios Basin of Peru. Ichthyol. Explor. Freshwat. 6(2):129-148. (Ref. 26646)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
Baixar XML
Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
