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Cynoscion leiarchus (Cuvier, 1830)

Smooth weakfish
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Native range | All suitable habitat | Point map | Year 2050
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Cynoscion leiarchus   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion leiarchus (Smooth weakfish)
Cynoscion leiarchus
Picture by Carvalho Filho, A.


Brazil country information

Common names: Cambucu, Corumbeba, Corvina tinga
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref: Barreto, T.M.R.R., K.M.F. Freire, J.J.C. Reis-Júnior, L.C. Rosa, A. Carvalho-Filho and M.M. Rotundo, 2018
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Located at the southernmost tip of the Bombinhas peninsula, southern Brazil (Ref. 55758). Also Ref. 26938. Caught by shrimp trawl in Pirambu, Sergipe (Ref. 118626).
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: Chao, L.N., 1978
National Database:

Common names from other countries

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: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
  More on author: Cuvier.

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

Marine; brackish; demersal; depth range 10 - 50 m (Ref. 9626), usually ? - 25 m (Ref. 9626).   Tropical; 14°N - 27°S, 83°W - 34°W

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

Western Atlantic: Panama to Santos, Brazil. Also reported in Nicaragua (Ref. 13613).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 90.8 cm TL male/unsexed; (Ref. 9626); common length : 35.0 cm TL male/unsexed; (Ref. 3702); max. published weight: 2.0 kg (Ref. 5217)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 20 - 24; Anal spines: 2; Anal soft rays: 8 - 10. Silvery bluish on back, often with greenish reflections. Whitish on belly. Upper sides sometimes with inconspicuous minute dark dots. Soft portion of dorsal fin and caudal fin edged with black, pelvic and anal fins yellowish. Inside of opercle dark, visible externally. Mouth large, pointed, lower jaw projecting. Upper jaw with a pair of large canine-teeth at tip. Chin without barbel or obvious pores. Snout with 2 marginal pores. Gas bladder with a pair of curved, horn-like anterior appendages. Scales small, all cycloid (smooth). Soft dorsal-fin base with 1 or 2 rows of scales along its base (Ref 51721).

Biology     Glossary (e.g. epibenthic)

Found over mud and sand bottoms in river estuaries. Occurs up to 50 m but usually less than 25 m (Ref. 9626). Marketed fresh and salted.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Cervigón, F., 1993. Los peces marinos de Venezuela. Volume 2. Fundación Científica Los Roques, Caracas,Venezuela. 497 p. (Ref. 9626)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 11 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; gamefish: yes
FAO(Publication : search) | FishSource | Sea Around Us

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
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Egg(s)
Egg developments
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Distribution
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BRUVS - Videos
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Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 27.9, mean 27.3 (based on 60 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00509 - 0.01238), b=3.07 (2.95 - 3.19), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.40 se; based on food items.
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.