Common names from other countries
Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: acicula: The specific name is from the Latim acicula which means needle, pin. This is used in reference to the narrowness of the snout compared to N. ephippia. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce demersal. Tropical
Distribución
Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri
South America: lower rio Tapajós drainage in Brazil.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL macho / no sexado; (Ref. 116855)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 1; Radios blandos dorsales (total) : 7; Radios blandos anales: 6. Nannoxyropsis acicula can be diagnosed from its congener N. ephippia by the absence of preopercle latero-sensory canal (vs. presence of sensory canal); and by enlarged odontodes on posterior margin of the parieto-supraoccipital, forming crest (vs. odontodes not enlarged or forming crest). It further differs from N. ephippia by having a longer head (34.8-39.4 vs. 29.4-33.5% SL), a narrower snout (width of snout measured at widest point of mouth opening (37.0-40.7 vs. 43.1-45.3% HL), a larger predorsal length (44.7-48.9 vs. 40.1-44.5% SL), a smaller dorsal interorbital distance (37.1-42.4 vs. 43.0-54.2% HL), 20-22 plates in median series of lateral plates (vs. 23), and 11-17 teeth on premaxilla (vs. 18-26) (Ref. 116855).
Collected from clear to blackwater creeks with moderate water current, bottom composed
of stones, gravel and mud or clay in parts, and moderate amounts of marginal vegetation (Ref. 116855).
Life cycle and mating behavior
Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva
Delapieve, M.L.S., P.A. Lehmann and R.E. Reis, 2017. An appraisal of the phylogenetic relationships of Hypoptopomatini cascudinhos with description of two new genera and three new species (Siluriformes: Loricariidae). Neotrop. Ichthyol. 15(4):e170079. (Ref. 116855)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.12 (2.93 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 2.3 ±0.1 se; based on size and trophs of closest relatives
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).