Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Pachyurus: Greek, pachys = fat + Greek, oura = tail (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical
South America: Sao Francisco River basin in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 36.5 cm SL male/unsexed; (Ref. 130067); max. published weight: 840.00 g (Ref. 130067)
Important food fish.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Casatti, L., 2003. Sciaenidae (Drums or croakers). p. 599-602. 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. 36888)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: commercial
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00776 (0.00418 - 0.01441), b=3.15 (3.00 - 3.30), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.6 ±0.3 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |
Price category (Ref. 80766) |
Medium.
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