Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); leucophaeus: From the Latin leucophaeus, meaning ash-colored, dun in allusion to the faint spotted pattern and overall light brown to grayish body coloration of the species..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
South America: Rio Itapicuru basin in Bahia State, Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 15.8 cm SL mâle / non sexé; (Ref. 110236)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 2; Rayons mous dorsaux (Total) : 7; Épines anales: 1; Rayons mous anaux: 3 - 4; Vertèbres: 31. Hypostomus leucophaeus can be differentiated from most congeners by having the lower caudal-fin lobe distinctly longer than the upper lobe, presence of a roughly triangular patch of platelets on ventral surface of body, and absence of conspicuous dark spots on posterior half of body. It is distinguished from congeners from northeastern coastal Brazilian drainages and the rio São Francisco basin by having the anterior portion of the abdomen completely plated and the posterior portion plated only on a narrow median line, leaving large lateral areas naked, dark spots on anterior portion of trunk similar in size or slightly larger than those on head, absence of conspicuous spots on posterior half of trunk and caudal fin, and absence of keels on head and trunk (Ref. 110236).
Facultative air-breathing in the genus (Ref. 126274); Collected from the rio Itapicuru and its tributaries, in stretches of up to 50 m wide and 1.8 m deep, with rocky bottom, usually clear water, moderate to fast water current, and at altitudes ranging from 38 to 449 meters above sea level (Ref. 110236).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Zanata, A.M. and B.R. Pitanga, 2016. A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from rio Itapicuru basin, Bahia State, Brazil. Zootaxa 4137(2):223-232. (Ref. 110236)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources 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=0.01023 (0.00450 - 0.02327), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
