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Cynoscion arenarius  Ginsburg, 1930

Sand weakfish
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Native range | All suitable habitat | Point map | Year 2100
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Cynoscion arenarius   AquaMaps   Data sources: GBIF OBIS
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Image of Cynoscion arenarius (Sand weakfish)
Cynoscion arenarius
Picture by NOAA\NMFS\Mississippi Laboratory


United States (contiguous states) country information

Common names: Sand seatrout, Seatrout
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 26938.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: https://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Robins, C.R. and G.C. Ray, 1986
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

Main reference

Size / Weight / Age

Max length : 63.5 cm TL male/unsexed; (Ref. 40637); common length : 35.0 cm TL male/unsexed; (Ref. 3702); max. published weight: 2.8 kg (Ref. 40637); max. reported age: 5 years (Ref. 58079)

Environment

Marine; brackish; demersal

Climate / Range

Subtropical, preferred ?; 30°N - 18°N, 98°W - 80°W

Distribution

Western Atlantic: Florida, USA and Gulf of Mexico to Bay of Campeche, Mexico.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 9 - 11; Dorsal soft rays (total): 25-29; Anal spines: 2; Anal soft rays: 10 - 12. Colour uniform silvery grey above, without conspicuous spots, silvery below. Pelvic and anal fins pale to yellowish. A faint dark area at bases and axial of pectoral fins. Inside opercle darkish, often visible externally. 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 widely spaced larger inner-row teeth, gradually increasing in size posteriorly. Chin without barbel or pore, snout with 2 marginal pores. Gas bladder with a pair of horn-like anterior appendages. Soft portion of dorsal fin with few small scales rows at base between soft fin rays (Ref 51721).

Biology     Glossary (e.g. epibenthic)

Occurs usually over sandy bottoms in shallow coastal waters, being relatively abundant in the surf zone. During summer months the fish move to their nursery and feeding grounds in river estuaries.

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: 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
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

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.2   ±0.3 se; Based on diet studies.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Vulnerability (Ref. 59153)
Moderate vulnerability (36 of 100)
Price category (Ref. 80766)
Medium