Common names from other countries
Classification / Names
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Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Megalonema: Greek, megas, megalos = great + Greek, nema = filament (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce demersale. Temperate
South America: Paraná River basin, Argentina.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 27.1 cm SL maschio/sesso non determinato; (Ref. 36506)
Reaches at least 27.1 cm SL (Ref. 36506).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00145 - 0.01438), b=3.08 (2.83 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).