Classificação / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: litteratus: From the latin litteratus (marked with letters), an allusion to the color pattern of the males, comprising red marks on the flanks resembling letters..
More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Upper rio Araguaia basin, central Brazil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm SL macho/indeterminado; (Ref. 54355); 3.0 cm SL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Distinguished by the unique color pattern on the flank in males, with red marks variable in shape, highly overlapped (vs. never a similar color pattern), and caudal fn with dark gray stripe posterior to caudal spot in females (vs. stripe absent). Also distinguished from all other members of the R. punctatus group by the combination of the following features: frontal squamation F-patterned (vs. E-patterned), flank with striking iridescent colors in male, contrasting metallic blue to greenish blue on middle of flank with light purplish blue above anal fin and brownish golden on anterior dorsolateralportion of body (vs. never a similar color pattern), no distinctive dark stripe along midline of flank (vs. stripe present); red bars on caudal fin in males (vs. bars absent).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Costa, W.J.E.M., 2005. Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil. Neotrop. Ichthyol. 3(1):69-82. (Ref. 54355)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.1 ±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).
