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Atractoscion aequidens (Cuvier, 1830)

Geelbeck croaker
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Atractoscion aequidens   AquaMaps   Data sources: GBIF OBIS
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Image of Atractoscion aequidens (Geelbeck croaker)
Atractoscion aequidens
Picture by Chao, N.L.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Atractoscion: Greek, atraktos, arrow + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
More on author: Cuvier.

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

Marine; benthopelagic; depth range 15 - 200 m (Ref. 3593), usually 100 - 200 m (Ref. 3593). Tropical; 14°N - 28°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Indian Ocean: off Mozambique and South Africa.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 65 - ? cm
Max length : 130 cm TL male/unsexed; (Ref. 4373); common length : 90.0 cm SL male/unsexed; (Ref. 9772); max. published weight: 25.0 kg (Ref. 4373)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 25 - 32; Anal spines: 2; Anal soft rays: 9 - 10. Body silvery (Ref. 4373).

Biology     Glossary (e.g. epibenthic)

Found in coastal waters, over sand muddy bottom. Juveniles enter estuaries. Adults feed on pelagic fishes at night. Often caught with Umbrina canariensis. Feeds on pelagic fish such as mackerel and horse mackerel (Ref. 36731). Marketed fresh, flesh highly esteemed (Ref. 9772).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Chao, L.N. and E. Trewavas, 1990. Sciaenidae. p. 813-826. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3593)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (A2b); Date assessed: 25 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; gamefish: yes
FAO - Fisheries: landings; Publication: search | FishSource | Sea Around Us

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
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Egg(s)
Egg developments
Larvae
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Distribution
Countries
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Occurrences
Introductions
BRUVS - Videos
Anatomy
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Brains
Otoliths
Physiology
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Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
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Aquaculture systems
Aquaculture profiles
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Stamps, coins, misc.
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Taxonomy
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Synonyms
Morphology
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Pictures
References
References

Tools

Bio-Quiz | E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Fisheries: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 14 - 26.5, mean 18.7 °C (based on 131 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00413 - 0.01752), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.80 se; based on food items.
Generation time: 4.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (K=0.27; tm=5).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (83 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 44.8 [25.6, 94.5] mg/100g; Iron = 0.725 [0.352, 1.348] mg/100g; Protein = 18.7 [17.4, 20.0] %; Omega3 = 0.217 [0.106, 0.379] g/100g; Selenium = 90.5 [45.3, 199.3] μg/100g; VitaminA = 26.7 [8.7, 87.3] μg/100g; Zinc = 0.651 [0.448, 0.988] mg/100g (wet weight);