Animalia > Chordata > Actinopterygii > Perciformes > Sciaenidae > Cynoscion > Cynoscion regalis

Cynoscion regalis (Weakfish; Squit; Squeteague; Silver weakfish; Silver squeteague; Silver seatrout; Seatrout; Shecutts; Sandtrout; Saltwater trout; Grey weakfish; Grey trout; Gray weakfish; Gray squwteague; Gray sea trout; Common weakfish; Chickwick; Bastard weakfish; Bastard trout; tide runner, gray trout, sun trout, shad trout, yellow-finned trout & yellowmout)

Synonyms: Cestreus carolinensis; Cynoscion regalis regalis; Johnius regalis; Labrus squeteague; Otolithus obliquatus; Roccus comes
Language: Danish; Finnish; French; Mandarin Chinese; Norwegian; Polish; Portuguese; Russian; Spanish; Sranan; Swedish

Wikipedia Abstract

The weakfish, Cynoscion regalis, is a marine fish of the drum family Sciaenidae. A medium-large, slender, marine fish, it is found along the east coast of North America. The head and back of this fish are dark brown in color with a greenish tinge. The sides have a faint silvery hue with dusky specks, and the belly is white. The origin of its name is based on the weakness of the mouth muscles, which often cause a hook to tear free, allowing the fish to escape. The weakfish grows to 1 m (3 feet) in length and 9 kg (20 pounds) in weight. It is found along the eastern coast of North America from Nova Scotia, Canada to northern Florida, where it is fished both commercially and recreationally.
View Wikipedia Record: Cynoscion regalis


Migration [2]  Oceanodromous
Water Biome [1]  Coastal

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Gateway National Recreation Area V 1807 New Jersey, United States

Emblem of


Prey / Diet

Ammodytes dubius (offshore sand lance)[3]
Anchoa hepsetus (Broad-striped anchovy)[3]
Anchoa mitchilli (Bay anchovy)[3]
Brevoortia tyrannus (Shad)[4]
Caranx hippos (Yellow cavalli)[3]
Centropristis striata (Sea bass)[4]
Chasmodes bosquianus (Striped blenny)[4]
Citharichthys arctifrons (Gulf Stream flounder)[3]
Crangon septemspinosa (sevenspine bay shrimp)[5]
Cynoscion regalis (Weakfish)[3]
Dichelopandalus leptocerus (bristled longbeak)[3]
Etrumeus acuminatus (Atlantic red herring)[3]
Gammarus lawrencianus[5]
Gobiosoma bosc (Naked goby)[4]
Illex illecebrosus (northern shortfin squid)[3]
Leiostomus xanthurus (Spot croaker)[4]
Menidia menidia (Tidewater silverside)[4]
Micropogonias undulatus (Atlantic croacker)[4]
Neomysis americana (Mysid shrimp)[5]
Ovalipes ocellatus (ocellate lady crab)[3]
Paralichthys dentatus (fluke)[4]
Peprilus triacanthus (Sheephead)[3]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Alosa pseudoharengus (kyack)2
Brevoortia tyrannus (Shad)1
Carcharias taurus (Spotted sand tiger shark)1
Caretta caretta (Loggerhead)1
Centropristis striata (Sea bass)5
Clangula hyemalis (Oldsquaw)1
Fundulus heteroclitus (mummichog)1
Hippoglossina oblonga (Fourspot flounder)3
Larus argentatus (Herring Gull)1
Larus marinus (Great Black-backed Gull)1
Leiostomus xanthurus (Spot croaker)3
Lepidochelys kempii (Atlantic Ridley, Kemp’s Ridley Seaturtle)1
Leucoraja erinacea (common skate)6
Menticirrhus saxatilis (Northern kingfish)4
Merluccius bilinearis (Whiting)6
Morone americana (Wreckfish)2
Morone saxatilis (Striper bass)1
Mustelus canis (Dogfish)3
Myoxocephalus aenaeus (Little sculpin)2
Myoxocephalus octodecemspinosus (Sea raven)3
Paralichthys dentatus (fluke)6
Phoca vitulina (Harbor Seal)1
Pomatomus saltatrix (Tailor run)5
Prionotus carolinus (Searobin)3
Prionotus evolans (Striped searobin)3
Pseudopleuronectes americanus (rough flounder)4
Rachycentron canadum (Sergent fish)1
Raja eglanteria (Clearnose skate)3
Rhinoptera bonasus (Skeete)1
Scophthalmus aquosus (brill)5
Squalus acanthias (Common spiny)1
Stenotomus chrysops (Scup)5
Syngnathus fuscus (Northern pipefish)1
Synodus foetens (Soapfish)1
Urophycis chuss (Squirrel hake)6
Urophycis regia (Spotted hake)4
Urophycis tenuis (White hake)1


Carcharhinus obscurus (Whaler shark)[3]
Carcharhinus plumbeus (Thickskin shark)[6]
Cynoscion regalis (Weakfish)[3]
Morone saxatilis (Striper bass)[4]
Paralichthys dentatus (fluke)[7]
Petromyzon marinus (Eel sucker)[4]
Pomatomus saltatrix (Tailor run)[4]
Raja eglanteria (Clearnose skate)[3]
Tursiops truncatus (Bottlenosed Dolphin)[4]


Parasitized by 
Amphicaecum regale <Unverified Name>[8]
Bianium plicitum[8]
Callitetrarhynchus gracilis[8]
Callitetrarhynchus speciosus[8]
Cynoscionicola heteracantha[8]
Cynoscionicola longicauda[8]
Dollfusentis chandleri[8]
Heteronybelinia estigmena[8]
Hysterothylacium auctum <Unverified Name>[8]
Neoheterobothrium cynoscioni[8]
Opechona pyriforme <Unverified Name>[8]
Otobothrium cysticum[8]
Poecilancistrium caryophyllum[8]
Pomphorhynchus tereticollis[8]
Pterobothrium heteracanthum[8]
Serrasentis sagittifer[8]
Southwellina hispida[8]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Minnesota Zoological Garden


Western Atlantic: Nova Scotia, Canada to northern Florida, USA.;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Riede, Klaus (2004) Global Register of Migratory Species - from Global to Regional Scales. Final Report of the R&D-Projekt 808 05 081. 330 pages + CD-ROM
3Food of Northwest Atlantic Fishes and Two Common Species of Squid, Ray E. Bowman, Charles E. Stillwell, William L. Michaels, and Marvin D. Grosslein, NOAA Technical Memorandum NMFS-NE-155 (2000)
4Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
5 Steimle FW, Pikanowski RA, McMillan DG, Zetlin CA, Wilk SJ. 2000. Demersal Fish and American Lobster Diets in the Lower Hudson - Raritan Estuary. US Dep Commer, NOAA Tech Memo NMFS NE 161; 106 p.
7Latour, Robert J., et al. "The trophic dynamics of summer flounder (Paralichthys dentatus) in Chesapeake Bay." Fishery Bulletin 106.1 (2008): 47+. Academic OneFile. Web. 23 July 2010
8Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access