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Cynoscion acoupa (Lacepède, 1801)

Acoupa weakfish
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Cynoscion acoupa   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion acoupa (Acoupa weakfish)
Cynoscion acoupa
Picture by Vaske Jr., T.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Sciaenidae (Drums or croakers)
Etymology: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).  More on author: Lacepède.

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

; marin; eau douce; saumâtre démersal; océanodrome (Ref. 51243); profondeur 1 - 20 m (Ref. 3702).   Subtropical; 13°N - 40°S, 80°W - 34°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Panama to Argentina; Southwest Atlantic: Sergipe, Brazil (Ref. 118626).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 42.7  range ? - ? cm
Max length : 110 cm TL mâle / non sexé; (Ref. 40637); common length : 45.0 cm TL mâle / non sexé; (Ref. 3702); poids max. publié: 17.0 kg (Ref. 40637)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 11; Rayons mous dorsaux (Total): 17-22; Épines anales 2; Rayons mous anaux: 7 - 9. Body nearly uniform silvery, dark greenish above. Without conspicuous spots on side but with diffuse dark areas along base of dorsal fin and on margin of spinous dorsal fin, ventral side of head, lower margin of pectoral, pelvic, and caudal fins often yellowish orange. Inside of opercle dusky. Mouth large, oblique. Lower jaw slightly projecting. Upper jaw with a pair of large canine-like teeth at tip. Lower jaw with a row of enlarged inner-row teeth, gradually increasing in size posteriorly. Chin without barbels or pores. Snout with 2 marginal pores. Pectoral fins about equal in length to pelvic fins. Gas bladder with a pair of long, straight, horn-like appendages. Sagitta earstone thin and elongate. Soft portion of dorsal fin unscaled except 2 or 3 rows of small scales along its base (Ref 51271).

Biologie     Glossaire (ex. epibenthic)

Forms schools (Ref. 35237). Found over mud or sandy mud bottoms near mouths of rivers. Juveniles are restricted to brackish and fresh waters. Feeds on shrimps and fishes. Important food fish (Ref. 3702).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Chao, L.N., 1978. Sciaenidae. In W. Fischer (ed.) FAO species identification sheets for fishery purposes. West Atlantic (Fishing Area 31). Volume 4. FAO, Rome. (Ref. 3702)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Préoccupation mineure (LC) ; Date assessed: 04 February 2009

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: commercial; pêche sportive: oui; Aquarium: Commercial
FAO(Publication : search) | FishSource | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 22.5 - 28, mean 27.3 (based on 292 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00536 - 0.01178), b=3.05 (2.93 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.1   ±0.70 se; Based on food items.
Résilience (Ref. 69278):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.27).
Prior r = 0.56, 95% CL = 0.37 - 0.84, Based on 3 stock assessments.
Vulnérabilité (Ref. 59153):  Moderate to high vulnerability (45 of 100) .
Catégorie de prix (Ref. 80766):   Medium.