Classification / Names
Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
>
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Leptolebias: Greek, leptos = thin + Greek,lebias, -ou = a kind of fish (Ref. 45335); itanhaensis: The specific name itanhaensis denotes the presence of this species in the Itanhaém river basin, an isolated small coastal drainage of southeastern Brazil.
More on author: Costa.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; pH range: 3.5 - 4.0; djupintervall 0 - ? m (Ref. 75888). Tropical
South America: seasonal pools in the Itanhaém river basin in southeastern Brazil.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.2 cm SL hane/ej könsbestämd; (Ref. 75888)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 13 - 16; Mjukstrålar i analfenan: 16 - 19. Diagnosed from other species of the genus Leptolebias except Leptolebias aureoguttatus by having four caudal neuromasts (vs. two), and horizontal golden lines on caudal fin in males (vs. no similar color pattern). Differs from Leptolebias aureoguttatus by possessing the following characters: two dark-red stripes on dorsal and ventral submarginal portion of caudal restricted to anterior portion of fin in males (vs. along all fin extension); male caudal-fin stripes parallel to fin rays, not branching posteriorly (vs. branching posteriorly); basal portion of dorsal fin with dark-orange small spots in males (vs. dark-red to dark-brown short transverse bars); and five or six lateral mandibular neuromasts (vs. three or four). Can also be differentiated from all congeners in the number of caudal fin rays, 27-31 vs. 25-28 (Ref. 75888).
Occurs in shallow (about 10-40 cm deep), temporary channels within dense rainforest, in tea-colored and acidic (pH 3.5-4.0) water with litter at the bottom (Ref. 75888).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Costa, W.J.E.M., 2008. Monophyly and taxonomy of the Neotropical seasonal killifish genus Leptolebias (Teleostei: Aplocheiloidei: Rivulidae), with the description of a new genus. Zool. J. Linn. Soc. 153:147-160. (Ref. 75888)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
Download XML
Internet-källor
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [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).
Trofisk nivå (Ref.
69278): 3.1 ±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).
