Cynoscion nebulosus, Spotted weakfish : fisheries, gamefish

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Cynoscion nebulosus (Cuvier, 1830)

Spotted weakfish
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Cynoscion nebulosus   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion nebulosus (Spotted weakfish)
Cynoscion nebulosus
Picture by Flescher, D.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> 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 Ecologia

marino; salmastro demersale; non migratori (Ref. 94474); distribuzione batimetrica 10 - ? m (Ref. 9988). Subtropical; 42°N - 15°N, 83°W - 70°W (Ref. 94474)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Western Atlantic: New York to southern Florida in USA and the entire Gulf of Mexico. Northeastern Atlantic: recently reported from Guadalquivir River estuary in Spain (Ref. 94474).

Length at first maturity / Size / Peso / Age

Maturity: Lm 26.8, range 25 - 35 cm
Max length : 100.0 cm TL maschio/sesso non determinato; (Ref. 40637); common length : 36.0 cm TL maschio/sesso non determinato; (Ref. 3702); peso massimo pubblicato: 7.9 kg (Ref. 40637); Età massima riportata: 18 anni (Ref. 12193)

Short description Morfologia | Morfometria

Spine dorsali (totale): 9 - 11; Raggi dorsali molli (totale): 25-28; Spine anali 2; Raggi anali molli: 10 - 11. Body silvery, dark grey on back with bluish reflections and numerous round black spots irregularly scattered on upper half, extending to dorsal and caudal fin. Spinous dorsal fin dusky, other fins pale to yellowish. Mouth large, oblique lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Lower jaw with an enlarged inner row of teeth, uniform in size and closely set. Chin without barbels or pores. Snout with 2 marginal pores. Gas bladder with a pair of nearly straight horn-like appendages. Soft portion of dorsal fin unscaled (Ref 51721).

Biologia     Glossario (es. epibenthic)

Inhabits river estuaries and shallow coastal marine waters over sand bottoms, often associated with seagrass beds. Also occurs in salt marshes and tidal pools of high salinity. Feeds mainly on crustaceans and fishes. An important food and sport fish throughout its range. Utilized fresh for steaming, broiling and baking (Ref. 9988).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 03 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: commerciale; Pesce da pesca sportiva: si
FAO - pesca: landings; Publication: search | FishSource | Sea Around Us

Informazioni ulteriori

Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Electrophoreses
Ereditarietà
Malattie
Elaborazione
Nutrients
Mass conversion
Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

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Estimates based on models

Preferred temperature (Ref. 123201): 12 - 26.7, mean 24.3 °C (based on 88 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00502 - 0.01317), b=3.05 (2.92 - 3.18), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.66 se; based on food items.
Generation time: 5.8 (4.0 - 6.7) years. Estimated as median ln(3)/K based on 13 growth studies.
Resilienza (Ref. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.2-0.3; tmax=18; tm=1; Fec=1 million).
Prior r = 0.69, 95% CL = 0.46 - 1.04, Based on 1 stock assessment.
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (60 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 43.1 [25.3, 82.0] mg/100g; Iron = 0.771 [0.408, 1.320] mg/100g; Protein = 19.1 [17.7, 20.8] %; Omega3 = 0.33 [0.20, 0.51] g/100g; Selenium = 30.9 [16.5, 56.8] μg/100g; VitaminA = 9.52 [3.34, 29.64] μg/100g; Zinc = 0.667 [0.495, 0.966] mg/100g (wet weight);