Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Acestrorhynchidae
(Smallscale pike characins) > Acestrorhynchinae
Etymology: Acestrorhynchus: Greek, agkistron = hook + Greek, rhyngchos = snout (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Amazon and Orinoco River basins. Also found in Rio Negro basin (Ref. 52916).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.8 cm SL male/unsexed; (Ref. 111115)
Morphology | Morphometrics
Bifurcated canals of the lateral line scales; 52 scale rows between the lateral line and base of the dorsal fin; and 31-35 scale rows between the lateral line and the base of the anal fin (Ref. 52916).
Inhabits clear and black-water rivers (Ref. 52916). Feeds on fishes (Ref. 598).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menezes, N.A., 2003. Family Acestrorhynchidae (Acestrorhynchids). p. 231-233. 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. 38248)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00410 - 0.01222), b=3.14 (2.99 - 3.29), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .