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: httpss://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:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sciaenidae (Drums or croakers)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

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

Main reference

Casatti, L. 2003. (Ref. 36888)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 80.0 cm TL male/unsexed; (Ref. 36888); max. published weight: 4.5 kg (Ref. 40637)

Length at first maturity
L_m 20.7 range ? - ? cm

Environment

Freshwater; benthopelagic; potamodromous (Ref. 51243)

Climate / Range

Tropical; 22°C - 27°C (Ref. 12468), preferred ?

Distribution

South America: Amazon, Orinoco, Paraná, Paraguay, and São Francisco River basins and rivers fo Guianas.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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).

IUCN Red List Status (Ref. 115185)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: commercial; aquarium: commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.4 ±0.5 se; Based on diet studies.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.11-0.22; tm=1-1.5)

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

Price category (Ref. 80766)
Medium

Plagioscion squamosissimus (Heckel, 1840)