Decapterus punctatus
(Cuvier, 1829)
Round scad

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Classification / Names

Teleostei (teleosts) > Carangiformes (Jacks) > Carangidae (Jacks and pompanos) > Caranginae
Etymology: Decapterus: Greek, deka = ten + Greek, pteron = wing, fin (Ref. 45335).
More on author: Cuvier.

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

Marine; reef-associated; depth range 0 - 100 m (Ref. 2683); subtropical; 45°N - 35°S98°W - 20°E.

Distribution

Western Atlantic: Nova Scotia, Canada (Ref. 7251) southward through the Gulf of Mexico and the Caribbean to Rio de Janeiro, Brazil. Eastern Atlantic: Morocco to South Africa, including the Madeira, Canary, Cape Verde, Ascension and St. Helena islands (Ref. 7097).

Maps

Decapterus punctatus / Native range
AquaMaps Data sources: GBIF OBIS
This map was computer-generated and has not yet been reviewed.

Decapterus punctatus / Suitable habitat
AquaMaps Data sources: GBIF OBIS
This map was computer-generated and has not yet been reviewed.

Decapterus punctatus / Point map
AquaMaps Data sources: GBIF OBIS
This map was computer-generated and has not yet been reviewed.

Decapterus punctatus / Year 2050
AquaMaps Data sources: GBIF OBIS
This map was computer-generated and has not yet been reviewed.

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Length at first maturity / Size / Weight / Age

Maturity: Lm 11.0, range ? - ? cm
Max length: 30.0 cm SL male/unsexed (Ref. 3277); common length: 18.0 cm TL male/unsexed (Ref. 5217); max. published weight: 300.00 g (Ref. 26340).

Short description

Dorsal spines (total): 9; Dorsal soft rays (total): 30 - 34; Anal spines: 3; Anal soft rays: 26 - 29. Greenish above, whitish below; adults with 3-1 small black spots on curved LL; opercle with small black spot (Ref. 3197).

Biology

Adults inhabit neritic waters, often near sandy beaches (Ref. 5217). A shoaling species, generally near the bottom (Ref. 27121). They feed on planktonic invertebrates, primarily copepods, but also on gastropod larvae, ostracods and pteropods (Ref. 3277). Spawning occurs well offshore year-round (Ref. 26938). Eggs are pelagic (Ref. 4233). A good food fish (Ref. 9626). Caught commercially and used mainly for bait.

Main reference

Smith-Vaniz, W.F., J.-C. Quéro and M. Desoutter 1990 Carangidae. p. 729-755. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 7097)

IUCN Red List Status (Ref. 125652)

  Least Concern (LC); date assessed: August 20 2012

CITES (Ref. 131153)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses

Fisheries: minor commercial; bait: usually.
FAO - Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

More information
Estimates based on models

Preferred temperature (Ref. 123201): 13.5 - 27.8, mean 24.3 °C (based on 900 cells).

Phylogenetic diversity index (Ref. 82804): PD50 = 0.501 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01148 (0.00752 - 0.01752), b=2.99 (2.86 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.4 ±0.0 se; Based on diet studies.

Generation time: 3.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (K=0.32; tm<1; Fec=28,600).

Prior r = 1.20, 95% CL = 0.79 - 1.80, Based on 1 data-limited stock assessment.

Fishing vulnerability (Ref. 59153): Low to moderate vulnerability (34 of 100).

Price category (Ref. 80766): Medium; Questionable: based on ex-vessel price for species in this genus.

Nutrients (Ref. 124155): Calcium = 143 [39, 362] mg/100g; Iron = 1.97 [0.70, 4.60] mg/100g; Protein = 21.6 [20.2, 22.8] %; Omega3 = 0.358 [0.176, 0.741] g/100g; Selenium = 23.8 [7.1, 68.8] μg/100g; VitaminA = 36.4 [8.6, 154.8] μg/100g; Zinc = 0.817 [0.464, 1.440] mg/100g (wet weight); based on nutrient studies.