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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335); varii: Named for Richard P. Vari for his outstanding contribution to the knowledge of South American freshwater fishes.
Eponymy: Dr Richard Peter Vari (1949–2016) was a curator of fish at the Smithsonian. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar bentopelagis. Subtropical
South America: Rio Jacuí basin in Rio Grande do Sul, Brazil.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 19.7 cm SL jantan/; (Ref. 104692)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 11.
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Menezes, N.A. and A.C. Ribeiro, 2015. A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae). Neotrop. Ichthyol. 13(3):541-546. (Ref. 104692)
Status IUCN Red List (Ref. 130435: Version 2024-2)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
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=0.00955 (0.00428 - 0.02132), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).