Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Adontosternarchus: Greek, a = without + Greek, odous = teeth + Greek, sternon = chest + Greek, archos = anus (Ref. 45335); duartei: Named for Cleber Duarte of INPA who collected the vast majority of the specimens that served as the basis for this description.
Eponymy: Cleber Duarte of Instituto Nacional de Pesquisas da Amazônia, Manaus, collected the majority of the specimens on which the description of this species was based. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; depth range 8 - 22 m (Ref. 91753). Tropical
South America: Rio Purus system in the central portions of the Amazon basin in Brazil.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.5 cm TL male/unsexed; (Ref. 91753)
Short description
Identification keys | Morphology | Morphometrics
Anal soft rays: 162 - 171. Distinguished from other congeners by having the following combination of characters: nearly even brown body pigmentation; presence of an unpigmented, median, longitudinal stripe on the chin and snout; mid-dorsal electroreceptive filament extending to, or one scale beyond, the vertical through the base of the last anal-fin ray; tail depth 7.7-15.2% of CL; caudal length 16.2-24.4% of LEA; pectoral fin hyaline at the base and dark distally; anal fin hyaline at the base and
dark distally; 162-171 anal-fin rays; head length 12.1-18.2% of LEA; head depth 10.9-15.8% of LEA; pectoral-fin length 10.6-13.3% of LEA; prepectoral- fin distance 11.6-16.4% of LEA; greatest body depth 15.3-19.3% of LEA (Ref. 91753).
Collected from white water in main river and close to beaches along the river margin (Ref. 91753).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
de Santana, C.D. and R.P. Vari, 2012. New species of Adontosternarchus (Gymnotiformes, Apteronotidae) from the Rio Purus Basin, Brazil. Copeia 2012(3):535-540. (Ref. 91753)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
