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Siluriformes (Catfishes) > 
Pimelodidae (Long-whiskered catfishes)						
							
							Etymology: Megalonema: Greek, megas, megalos = great + Greek, nema = filament (Ref. 45335).
More on author: Eigenmann.						
					
				
					Environment: milieu / climate zone / rango de profundidad / distribution range					
						Ecología					
				
				
				
					; agua dulce demersal. Tropical				
				
			
			
			
				
				
				
					South America:  Amazon, Essequibo and Orinoco River basins.
				
				
			
			
				
					Tamaño / Peso / Age
				
				
				
					Madurez: Lm ?  range ? - ? cm
 Max length : 30.0 cm TL macho / no sexado; (Ref. 26543)				
				 
			
			
			
			
			
			
			
			
				Feeds on beetle larvae,  fish scales and catfish spines (Ref. 6868).			
			 
			
			
			
				
					Life cycle and mating behavior					
					Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva				
				
				
				
								
				
			
			 
				
				
				
					Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)
				
				 
			
			
			
							
					
						IUCN Red List Status   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
Herramientas
				
			
			
			
				
Special reports
 
				
			
			
			
				
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					Fuentes de Internet
				
				
			
			
			
				
					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Referencia 
82804):  PD
50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.00589 (0.00278 - 0.01246), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 
93245).
					
					Nivel trófico  (Referencia 
69278):  4.0   ±0.68 se; based on food items.					
											
				
				
										
						Resiliencia  (Referencia 
120179):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (20 of 100). 
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