Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Spectrolebias: Latin, spectrum = imagen of a thing, apparition + Greek, lebias, ou = a kind of small fish (Ref. 45335); brousseaui: Named for Roger D. Brousseau, the person who discovered the species..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce pélagique; profondeur 0 - 1 m (Ref. 93219). Tropical
South America: Bolivia.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 3.2 cm SL mâle / non sexé; (Ref. 93219); 3.5 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
This species differs from its congeners by having a unique color pattern of males: anterior third of body light brown, posterior two-thirds of body dark blue, almost black dorsal region, with rows of bright blue spots, relatively large size, with about half the diameter of the pupil. It differs from all its congeners, except S. filamentosus, by having pelvic-fin bases separated by an interspaced (vs. pelvic-fin bases in contact), tip of dorsal and anal fins in males with long filamentous rays (vs. absence of filaments, or presents only on dorsal fin in S. semiocellatus and S. inaequipinnatus, or presents only on anal fin in S. chacoensis), and presence (vs. absence) of contact organs on scales of flank in males (Ref. 93219).
The locality where the species occurs lies at the plateau area (316 m.a.s.l.), just southwest of Llanos de Mojos, which occupy much of the río Mamoré basin. Water temperature at the surface of the pool was 31ºC, at 1 meter depth was 22ºC, and at the marginal area of the pool, at 15 cm depth, was 35ºC. Only small specimens of Trigonectes sp. were collected syntopically in marginal areas, while specimens of Simpsonichthys brousseaui were collected in the deepest areas, at about 1 m deep. The pool has dark water, pH 6.8 and water hardness 80 ppm (Ref. 93219).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Nielsen, D.T.B., 2013. Spectrolebias brousseaui (Cyprinodontiformes: Rivulidae: Cynolebiatinae), a new annual fish from the upper río Mamoré basin, Bolivia. Neotrop. Ichthyol. 11(1):81-84. (Ref. 93219)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [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).
Niveau trophique (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
