Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Polycentridae
Etymology: Polycentrus: Greek, poly = a lot of + Greek, kentron = sting (Ref. 45335).
More on authors: Müller & Troschel.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic; pH range: 6.0 - 7.0; dH range: 18 - 20. Tropical; 22°C - 26°C (Ref. 13371)
South America: Trinidad (W.I.), and Atlantic coastal rivers of Venezuela, Guyana, Suriname, French Guiana and Brazil (state of Amapá).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 50082)
Inhabits clear and turbid water, often brackish water (Ref. 11225). Feeds on worms, insects and fish (Ref. 7020).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Produces up to 600 eggs.
Britz, R. and S.O. Kullander, 2002. Polycentridae (Leaffishes). p. 603-604. 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. 50082)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.8750 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00773 - 0.05148), b=3.02 (2.79 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.49 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Fec=600.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .