Classificatie / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Loricariinae
Etymology: Loricaria: Latin, lorica, loricare = cuirass of corslet of leather; 1706 + Greek, ichthys = fish (Ref. 45335); pumila: From the Latin 'pumilus', meaning dwarf, alluding to the small adult size of this species, particularly among Loricaria.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal; diepte 3 - 29 m (Ref. 79031). Tropical
South America: Brazil in Rio Amazonas near the mouth of rio Tapajós and rio Pará adjacent to and including lower rio Tocantins.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 8.1 cm SL mannelijk / geslacht onbekend; (Ref. 79031)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Differs from all congeners, except Loricaria nickeriensis, by attaining a small adult size, reaching sexual maturity at less than 8.0 cm SL. Distinguished further from Loricaria nickeriensis and Amazon basin Loricaria by the following combination of characters: surfaces of head with prominent crests and predorsal plates with numerous well developed odontodes arranged in conspicuous linear rows; anterior abdominal area covering pectoral girdle naked, with occasional small isolated plates at bases of pectoral fins, pre-anal shield and space between lateral abdominal plates with large polygonal plates; total plates in lateral series 31-32 (modally 31); and post-anal plates 18-19 (modally 18). One specimen from the lower rio Tocantins differs from other collected specimens from the lower Amazon by having a larger eye and maximum orbital diameter of 20.4% HL (vs. 15.4-17.7% HL) and lightly developed iris operculum (vs. absent); and conspicuous pigment pattern consisting of brown blotches on the head and fins with five dark saddles on the dorsum of the body (vs. patterns in Amazon specimens similar, but diffuse) (Ref. 79031).
Facultative air-breathing in the genus (Ref. 126274); Reportedly collected using bottom trawls at depths from 3 to 29 m and at distances of 15 to 1500 m from the shoreline, as well as over silt and organic detritus. Aquatic insect larva, sclerotized body parts of unidentified insects, organic detritus and sand were found in the stomach contents of a single specimen measuring 7.31 cm SL (Ref. 79031).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Thomas, M.R. and L.H. Rapp Py-Daniel, 2008. Three new species of the armored catfish genus Loricaria (Siluriformes: Loricariidae) from river channels of the Amazon basin. Neotrop. Ichthyol. 6(3):379-394. (Ref. 79031)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [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).
Trofisch niveau (Ref.
69278): 2.6 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
