Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar bentopelagis; nir-ruaya. Tropical
South America: Orinoco River basin in Venezuela.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm TL jantan/; (Ref. 27139)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Can be distinguished from all other described species of Rivulus in having elongated pectoral fins reaching to base of pelvic fins in both sexes, and in the combination of: dorsal and anal fin extending to or beyond base of caudal fin in both sexes, similar development of the rivulus spot in both sexes, elongated pelvic fins reaching beyond anal-fin origin in both sexes, and low number of scales in lateral series (26-29) (Ref. 26619).
Inhabits small forest pools (Ref. 26619). Bottom spawner, 4 months incubation (Ref. 27139).
Life cycle and mating behavior
Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)
Status IUCN Red List (Ref. 130435)
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=0.00977 (0.00315 - 0.03034), b=3.03 (2.78 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).