Teleostei (teleosts) > 
Siluriformes (Catfishes) > 
Heptapteridae (Three-barbeled catfishes)						
							
							Etymology: Cetopsorhamdia: Greek, ketos = a marine monster, whale + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
More on author: Schultz.						
					
				
					Environment: milieu / climate zone / depth range / distribution range					
						Ecology					
				
				
				
					Freshwater;  demersal. Tropical				
				
			
			
			
				
				
				
					South America:  Napo River basin in Ecuador and Orinoco River basin in Venezuela.
				
				
			
			
				
					Size / Weight / Age
				
				
				
					Maturity: Lm ?  range ? - ? cm
 Max length : 5.4 cm SL male/unsexed; (Ref. 36914)				
				 
			
			
			
			
			
			
			
			
							
			
			
			
			
				
					Life cycle and mating behavior					
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
				
				
				
								
				
			
			 
				
				
				
					Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
				
				 
			
			
			
							
					
						IUCN Red List Status   (Ref. 130435: Version 2025-1)
					
					
				 
					
			
			
			
			
			
			
			
				
					Threat to humans  
				
				
				
					  Harmless				
				
			 
			
			
			
			
				
					Human uses  				
				
				
									
				
				
			
			
						
			
			
			
				
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Special reports
 
				
			
			
			
				
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					Internet sources
				
				
			
			
			
				
					Estimates based on models				
				
				
				
				
				
					
					Phylogenetic diversity index  (Ref. 
82804):  PD
50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].					
													Bayesian length-weight: a=0.01122 (0.00397 - 0.03168), b=2.97 (2.73 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 
93245).
					
					Trophic level  (Ref. 
69278):  3.3   ±0.4 se; based on size and trophs of closest relatives					
											
				
				
									
					
											
				
									
					Fishing Vulnerability  (Ref. 
59153):  Low vulnerability (10 of 100). 
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