Klassifizierung / Names
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Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: Aspidoras: Greek, aspis, -idos = shield + Greek, dora = skin (Ref. 45335); marianae: Named for Mariana P. Wosiacki, daughter of the third author (Ref. 114781).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch. Tropical
South America: known only from its type locality, an unnamed stream tributary of the Rio Curuá, itself a tributary of the Rio Iriri in the Rio Xingu basin, Brazil (Ref. 114781).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 2.9 cm SL Männchen/unbestimmt; (Ref. 114781)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt): 2; Rückenflossenweichstrahlen (insgesamt): 8; Afterflossenstacheln 0; Afterflossenweichstrahlen: 7; Wirbelzahl: 23. Aspidoras marianae is distinguished from its congeners by having minute odontode-bearing platelets scattered over surface of snout region. It can be diagnosed from its congeners, except A. taurus, by having infraorbital 1 and 2 covered by thick skin and not visible externally (vs. externally visible), and from A. taurus by the possession of minute platelets between parieto-supraoccipital process and nuchal plate (vs. absence); from Aspidoras microgalaeus and A. belenos by the presence of 3 nasal pores (vs. 2); from A. velites by presenting ventral laminar expansion of the 1st infraorbital conspicuously expanded (vs. very reduced, almost absent in some specimens); by the number of dorsal-fin rays, II,7,i (vs. II,7-II,8); the reduced number of ventrolateral body plates, 22-23 (vs. 24-26); the greater depth of body, 28.0-31.0% SL (vs. 15.0-20.3%); the greater maximum cleithral width, 24.1-28.5% SL (vs. 12.5-17.1%); the greater head depth, 68.2-83.0% HL (vs. 53.2-64.6%); the greater least interorbital distance, 49.9-58.6% HL (vs. 30.3-38.3%); and the greater least internareal distance, 26.9-31.8% HL (vs. 11.1-17.9%); distinguish from A. microgalaeus by the greater head length, 32.5-38.6% SL (vs. 25.4-28.7%); the greater horizontal orbit diameter, 18.9-23.5% HL (vs. 10.1-17.0%); the reduced number of total free vertebrae, 23 (vs. 25); the 1st infraorbital notoriously expanded ventrally (vs. not expanded); anal fin with a diffuse blotch restricted to the base of the last 2 rays, and 1 blotch each over 3rd and 4th branched rays (vs. 2 series of dots on all rays); differs from A. belenos and A. brunneus, it by the overall coloration in a roughly marbled pattern (vs. characterized by stripes and/or solid, uniform coloration); also from A. belenos by conical serrations on the pectoral-fin spine (vs. bifid serrations) (Ref. 114781).
Facultative air-breathing (Ref. 126274); Found in a slow-flowing stream with clear water and a sandy bottom with mud, leaf litter, submerged logs, and some aquatic macrophytes (Ref. 114781).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Leão, M.D.V., M.R. Britto and W.B. Wosiacki, 2015. A new species of Aspidoras Ihering (Siluriformes: Callichthyidae: Corydoradinae) from the Rio Xingu Basin, Pará, Brazil. Zootaxa 3986(5):577-587. (Ref. 114781)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien:
Mehr Information
NamenSynonymeMetabolismusRäuberÖkotoxikologieFortpflanzungGeschlechtsreifeAblaichenSpawning aggregationFecundityEierEientwicklung
Alter/GrößeWachstumLänge-GewichtLänge-LängeLängenhäufigkeitenMorphometrieMorphologieLarvenLarven Pop.Dyn.RekrutierungDichteBRUVS
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
