Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Eponymy: Charles J Simpson, California, was a friend of the author. We have been unable to find further details. (Ref. 128868), visit book page.
More on authors: Costa, Nielsen & deLuca.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten pelagiska. Tropical
South America: São Francisco River basin, Brazil.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL hane/ej könsbestämd; (Ref. 36579)
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Costa, W.J.E.M., D.T.B. Nielsen and A.C. de Luca, 1977. Quatro novos rivulideos anuais do gênero Simpsonichthys (Cyprinodontiformes) das bacias dos rios São Francisco e Pardo, Brasil. Rev. Fr. Aquariol. 4(1):24-31. (Ref. 30821)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).