Klassifizierung / Names
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Siluriformes (Catfishes) >
Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: Corydoras: Greek, kory = helmet + greek, doras = skin (Ref. 45335); apiaka: Named for the indigenous tribe Apiaká, meaning 'people' in Tupi language, which originally occupied the middle and lower rio Arinos, lower rio Juruena, but is nowadays restricted to the lower rio Juruena. The tribe is known for facial tattoos and bravery in battles, as well as by anthropophagic rites after fights. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser demersal. Tropical
South America: tributaries of rio Arinos, rio Teles Pires and rio Preto of the rio Tapajós basin in Brazil.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 3.9 cm SL Männchen/unbestimmt; (Ref. 102660)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt): 2; Rückenflossenweichstrahlen (insgesamt): 8; Afterflossenweichstrahlen: 8. Corydoras apiakacan be diagnosed from its spotted congeners by having smaller dorsal-fin spine than the three anterior branched dorsal-fin rays (vs. dorsal-fin spine smaller than just two anterior dorsal-fin rays, or equal in size). It differs from its congeners, with the exception of C. albolineatus, C. araguaiaensis, C. haraldschultzi, C. julii,C. polystictus, C. multimaculatus and C. xinguensis, by having numerous dark-brown spots over the head and body (vs. absence of spots). It can be distinguished from C. albolineatus, C. araguaiaensis and C. haraldschultzi by having several spots scattered all over the head and trunk in a somewhat random pattern (vs. spots more concentrated and with a single pale horizontal stripe in the middle of the body in C. albolineatus; or spots arranged in three or more stripes along the trunk in C. araguaiaensis and C. haraldschultzi); pectoral, pelvic and anal fins hyaline (vs. several series of small blotches over fin rays), and adipose fin hyaline or bearing one spot (vs. two or more spots). Corydoras apiaka further differs from C. multimaculatus and C. xinguensisby the absence of blotches on interradial membrane of dorsal fin (vs. presence); adipose fin hyaline or with a single spot (vs. two or three well defined spots); spots not reaching over the anal fin base (vs. spots extending to anal-fin base). It is distinguished from C. xinguensisby the absence of spots onanal fin (vs. presence); body spots with diffuse border (vs. spots with well delimited edge). It can be further separated from all other spotted species, except C. multimaculatus, by the naked ventral region (vs. belly with small platelets) (Ref. 102660).
Facultative air-breathing (Ref. 126274); Most inhabits lotic environment in the rio Arinos and its tributaries. The rio Arinos is characterized by muddy-brown color and soft bottom of clay and sand. Collected mostly in small forest streams of black or clear water, or in marginal ponds (Ref. 102660).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Espíndola, V.C., M.R.S. Spencer, L.R. Rocha and M.R. Britto, 2014. A new species of Corydoras Lacépède (Siluriformes: Callichthyidae) from the Rio Tapajós basin and its phylogenetic implications. Papéis Avulsos de Zoologia 54(3):25-32. (Ref. 102660)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
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=0.01622 (0.00688 - 0.03823), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-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).
