Issue
Relationships discussed in Weitzman & Malabarba (1999).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Temperate
South America: Atlantic versant rivers from northern Santa Catarina to southern Paraná, Brazil.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL hane/ej könsbestämd; (Ref. 37055)
Mjukstrålar i ryggfenan (totalt) : 10 - 11; Mjukstrålar i analfenan: 14 - 17; Ryggkotor: 32 - 33. Low vertebral count (32-33) versus 32-34 for S. broccae and S. leptoura; larger preanal distance in males (61.3-63.9% SL versus 55.9-61.5 for S. broccae and 57.3-61.9 for S. leptoura.
Inhabits lower elevations of coastal blackwater streams that drain the surrounding forests.
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Weitzman, S.H. and L.R. Malabarba, 1999. Systematics of Spintherobolus (Teleostei: Characidae: Cheirodontinae) from eastern Brazil. Ichthyol. Explor. Freshwat. 10(1):1-43. (Ref. 32783)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±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).