Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Incertae sedis
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335). More on author: Ahl.
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 5.5 - 8.0; dH range: ? - 25. Tropical; 23°C - 28°C (Ref. 1672), preferred ?
South America: Tapajós River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.8 cm SL male/unsexed; (Ref. 40342); 3.6 cm SL (female); max. published weight: 1.36 g (Ref. 40342); max. published weight: 1.36 g
Feeds on worms, crustaceans and plant matter (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Based on aquarium observations, males defend territories during the morning spawning period while females school, periodically entering a male's territory individually to spawn (Ref. 40342). After a brief courtship, there is a short spawning rush near some suitable substrate such as clumps of aquatic plants (Ref. 40342). There is no parental care, males leaving their territory after the spawning period to school with the females (Ref. 40342).
Produces many batches of eggs per season and releases each of these batches over many spawning acts (Ref. 40342). Aquarium observations suggest that this species reproduces continuously after reaching maturity (Ref. 40342).
Burt, A., D.L. Kramer, K. Nakatsuru and C. Spry, 1988. The tempo of reproduction in Hyphessobrycon pulchripinnis (Characidae), with a discussion on the biology of 'multiple spawning' in fishes. Environ. Biol. Fish. 22(1):15-27. (Ref. 40342)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Aquarium: highly commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00638 - 0.02853), b=3.04 (2.86 - 3.22), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.31 se; Based on food items.
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .