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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); milonga: The name ‘milonga’ refers to the musical rhythm popularized in Argentina and Rio Grande do Sul State (Brazil); noun in apposition.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Tropical
South America: Argentina and Brazil.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 3.9 cm SL mâle / non sexé; (Ref. 122319)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 9 - 10; Rayons mous anaux: 6 - 7; Vertèbres: 34 - 35. This species is distinguished from all its congeners, except ibirapuita and teiniagua by the absence of the pore s3 of the supraorbital line of the laterosensory system (vs. with pore s3) and it differs from these species by the presence of the pore s6 of the supraorbital line of the laterosensory system (vs. pore 6 absent); differs from S. mate and S. guapa by having the rounded brown blotches at the midlateral line larger than opercle (vs. blotches as large as or smaller than opercle and absent, respectivelu) (Ref. 122319).
Cross section: oval.
Occurs in rivers and streams with sand- and gravel-bottoms and has not been collected syntopically with its congeners. Individuals larger than 3.1 cm SL are reported to be capable of spawning and are considered adults. Reported diet composed mainly of immature, autochthonous and benthic insects (Ephemeroptera, Chironomidae, and Trichoptera), in both adults and juveniles (Ref. 122319).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Ferrer, J. and L.R. Malabarba, 2020. Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands. Neotrop. Ichthyol. 18(2):1-81. (Ref. 122319)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00759 (0.00332 - 0.01733), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |