Brazil country information

Common names: Corvina, Corvina branca, Cruvina
Occurrence: native
Salinity: freshwater
Abundance: occasional (usually not seen) | Ref: Silvano, R.A.M. and A. Begossi, 2001
Importance: commercial | Ref: Ferreira, E.J.G., J. Zuanon and G.M. dos Santos, 1996
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Recorded from the Caracu and Sao Pedro streams, both tributaries of the Paraná river (Ref. 26076) and Piracicaba river (Ref. 31923). Type localities: Rio Negro and Rio Branco, NMW 92.124 (holotype of Sciaena squamosissima, dry specimen); Rio Crixas, and affluent of Rion Araguay, MNHN 7503 (holotype of Johnius crouvina; Barra, at confluence of rio Grande and Rio São Francisco, NMW 57217 (holotype of Plagioscion francisci) (Ref. 36888).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Pavanelli, C.S. and E.P. Caramaschi, 1997
National Database:

Common names from other countries

Acoupa rivière, Curbinata, Silver croaker, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Plagioscion: Greek, plagios = oblique + Greek, skiaina, skion = barbel, red mullet (Ref. 45335).
More on author: Heckel.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical; 22°C - 27°C (Ref. 12468)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Amazon, Orinoco, Paraná, Paraguay, and São Francisco River basins and rivers fo Guianas.

Length at first maturity / Size / Weight / Age

Maturity: L_m 20.7 range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 36888); max. published weight: 4.5 kg (Ref. 40637)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 30-34; Anal spines: 2; Anal soft rays: 5 - 6. Vertebral column extends into caudal fin. Black spot near the base of the pectorals. Dorsal posterior margin of operculum slightly toothed.

Occupies very diverse biotopes and carries out its biological cycle in freshwater as well as in brackish water (Ref. 27188). Juveniles feed on larvae of crustaceans (especially Macrobrachium), aquatic insects and copepods. Adults prey on fish. Captured during the rainy season (Ref. 35237).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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)

Least Concern (LC) ; Date assessed: 30 July 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: commercial; aquarium: commercial

FAO(Fisheries: production; publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00795 - 0.00954), b=3.09 (3.07 - 3.11), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.4 ±0.5 se; based on diet studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.11-0.22; tm=1-1.5).

Fishing Vulnerability (Ref. 59153): High vulnerability (62 of 100).

Price category (Ref. 80766): Medium.

Plagioscion squamosissimus (Heckel, 1840)