Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Loricariinae
Etymology: parakana: The species name, parakana, is in reference to the Parakanã, inhabitants of the margins of the lower rio Tocantins, in the State of Pará. Parakanã, an American group that historically inhabited the area of the lower rio Tocantins, drainage from whi.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. Tropical
South America: Brazil. Known from the type locality at lower rio Tocantins, below Tucuruí Dam (Ref. 83332).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.1 cm SL hane/ej könsbestämd; (Ref. 83332)
Short description
Bestämningsnycklar | Morfologi | Morfometri
This species is distinguished from its congeners by the following characters: position of the anal-fin is more anterior with its origin situated anterior to the vertical through the distal tip of the last dorsal-fin ray (vs. anal-originating posteriorly); it differs further (except with L. avacanoeiro and L. stibaros) in lacking plates on the anterior tip of the snout (vs. snout entirely covered with plates or with an inconspicuous naked area), in teeth having long cusps (vs. short), and having a longer dentary in specimens larger than 50 mm SL, 20.1-22.6%, (vs. 11.5-19.1% HL); differs from L. filamentosus and L. llanero in having a semi-oval shaped lower lip (vs. semicircular shaped); similar to L. avacanoeiro and L. stibaros, but from which it may be distinguished by having a broader head 101.3-106.1% (vs. 78.9-101.4% HL) and the greater orbital diameter 16.6-17.3%, (vs. 13.7-15.5% HL), in specimens larger than 10.0 cm SL; also differs from L. avacanoeiro in having a longer first branched dorsal-fin ray 26.4-31.0% (vs. 20.5-26.7% SL) (Ref.83332).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
de Carvalho Paixão, A. and M. Toledo-Piza, 2009. Systematics of Lamontichthys Miranda-Ribeiro (Siluriformes: Loricariidae), with the description of two new species. Neotrop. Ichthyol. 7(4):519-568. (Ref. 83332)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00159 - 0.00757), b=3.14 (2.96 - 3.32), 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).
