Classification / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); melanephelis: The specific epithet, melanephelis, from the greek melanos meaning dark or black, and ephelis, meaning freckle, in allusion to the color pattern formed by tiny dark dots along the head and body (Ref. 103391).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Tropical
South America: currently known only from the rio Tapajós basin, near Itaituba city, Pará State, Brazil (Ref. 103391).
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 17.8 cm SL maschio/sesso non determinato; (Ref. 103391)
Short description
Morfologia | Morfometria
Spine dorsali (totale): 2; Raggi dorsali molli (totale): 7; Spine anali 0; Raggi anali molli: 5; Vertebre: 29. Diagnosis: Hypostomus melanephelis is distinguished from the congeners, except H. interruptus, H. paucimaculatus, H. micropunctatus, H. nigropunctatus, and H. rhantos, by having conspicuous dark, roundish and tiny (smaller than eye pupil) set of dark spots on trunk (vs. medium to large pale or dark spots [larger than eye pupil], or transversally elongated dark spots); Hypostomus melanephelis is distinguished from H. interruptus, H. paucimaculatus, H. micropunctatus, H. nigropunctatus, and H. rhantos by the naked to partially plated abdomen (vs. abdomen completely covered by platelets); it is further diagnosed from H. interruptus by a larger mandibular ramus, 18-22 % HL (vs. 11.6-17.5 % HL; from H. paucimaculatus by having villiform bicuspid non spoon-shaped teeth with the lateral cusps not fused to the mesial tooth (vs. massive spoon-shaped teeth with lateral cusps usually fused to the mesial tooth); from H. micromaculatus by having usually 1 row of spots on each interradial membrane of dorsal fin (vs. 4-5) moderately distant from each other on flanks (vs. densely settled spots); from H. nigropunctatus by having just 1 plate posteriorly bordering supraoccipital (vs. 3); and from H. rhantos by having a more depressed head 49-56 % SL (vs. a more deeper head 64.3-83.2 % HL (Ref. 103391).
Facultative air-breathing in the genus (Ref. 126274); Collection area included different sections of running waters on large extensions of rocky substrate (Ref. 103391).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Zawadzki, C.H., A.S. Oliveira, R.R. de Oliveira and L.H. Rapp Py-Daniel, 2015. Hypostomus melanephelis a new armored catfish species from the rion Tapajós basin, Brazil (Teleostei: Loricariidae). Ichthyol. Explor. Freshwat. 26(1):49-58. (Ref. 103391)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca:
Informazioni ulteriori
Nomi ComuniSinonimiMetabolismoPredatoriEcotossicologiaRiproduzioneMaturitàDeposizioneSpawning aggregationFecundityUovaEgg development
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanzaBRUVS
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
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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=0.01230 (0.00531 - 0.02848), b=2.97 (2.76 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
