Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Loricariinae
Etymology: Rhadinoloricaria: Greek, rhadinos, -e, -on = soft, flexible + Latin, lorica, loricare = cuirass of corslet of leather; 1706 (Ref. 45335); stewarti: Named for Donald S. Stewart, for his contributions to the knowledge of the freshwater fishes, especially the Napo River, Ecuador.
Eponymy: Dr Donald James Stewart (d: 1946) is Professor of Environment & Forest Biology at the College of Environmental Science and Forestry, State University of New York, Syracuse, where he presently teaches Ichthyology & Tropical Ecology. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten bottenlevande. Tropical
South America: Ecuador.
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 12.5 cm SL hane/ej könsbestämd; (Ref. 124527)
Short description
Bestämningsnycklar | Morfologi | Morfometri
This species is distinguished from R. macromystax by its snout shape which is more pointed and less projected, its snout length 11.3-13.3% SL (vs. 14.6-15.1% SL); with longer caudal peduncle, with postanal length 48.9-50.8% SL (vs. 45.2-46.1% SL); more distance of dorsal-fin to caudal-fin, its postdorsal length 57.5-59.0% SL (vs. 54.3% SL); abdomen plating variable, totally or partially covered with plates (vs. abdomen totally covered with plates) (Ref. 124527).
Cross section: flattened.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Provenzano-Rizzi, F. and R. Barriga-Salazar, 2020. New finding of Rhadinoloricaria macromystax (Siluriformes: Loricariidae): redescription of the genus and description of a new species from Ecuador. Zootaxa 4779(4):485-500. (Ref. 124527)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00181 - 0.00834), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.5 ±0.2 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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