Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Temperate
South America: upper Uruguay River basin.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 6.9 cm SL mâle / non sexé; (Ref. 37098)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 4 - 5; Rayons mous anaux: 9 - 12; Vertèbres: 34. The unique color pattern of dorsum and dorsolateral sides greyish-brown with small dark chromatophores, becoming sparse and faint towards the ventral portion of the body, distinguishes this species from all congeners. Can be further diagnosed by the following combination of features: nasal ossified with wide medial flanges partially sutured to lateral border of mesethmoid; 4 branched rays on pectoral fin; ribs attached to consecutive post-Weberian vertebrae; with two vertebrae alternatingly unribbed and ribbed; first nuchal plate somewhat elliptical to rounded; eye 17.4-22.8% HL; caudal-fin lobes of equal length in mature females, upper lobe slightly elongated in mature males; and vertebrae 34 (Ref. 79512).
Found in rivers with bedrock and loose stones on the bottom (Ref. 26675). Nocturnal. Reaches sexual maturity above 5.24 cm SL (Ref. 79512).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Koch, W.R. and R.E. Reis, 1996. Tatia boemia, a new species of auchenipterid catfish (Teleostei: Siluriformes) from the Rio Uruguai drainage, southern Brazil. Ichthyol. Explor. Freshwat. 7(1):85-90. (Ref. 26675)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00490 (0.00196 - 0.01224), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |