Atractoscion nobilis (Ayres, 1860)

White weakfish
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Atractoscion nobilis   AquaMaps   Data sources: GBIF OBIS
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Image of Atractoscion nobilis (White weakfish)
Atractoscion nobilis
Picture by Steele, M.A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sciaenidae (Drums or croakers)
Etymology: Atractoscion: Greek, atraktos, arrow + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).

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

Marine; demersal; depth range 0 - 122 m (Ref. 2850).   Subtropical; 65°N - 22°N

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

Eastern Pacific: Alaska to southern Baja California, Mexico and the Gulf of California.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 166 cm TL male/unsexed; (Ref. 40637); common length : 100.0 cm TL male/unsexed; (Ref. 9118); max. published weight: 41.0 kg (Ref. 2850); max. reported age: 20 years (Ref. 56049)

Short description Morphology | Morphometrics

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 20-23; Anal spines: 2; Anal soft rays: 8 - 9; Vertebrae: 24. Pelvic fins with fleshy appendage at base.

Biology     Glossary (e.g. epibenthic)

Often in schools over rocky bottom and in kelp beds (Ref. 2850). Also found in the surf zone (Ref. 2850). Young in bays and along sandy beaches (Ref. 2850). Feed on fishes, squids, and crayfish (Ref. 6885). Pelagic spawners (Ref. 56049). Excellent food fish (Ref. 9118).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Pelagic spawner (Ref. 56049).

Main reference Upload your references | References | Coordinator | Collaborators

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 22 May 2007

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial; gamefish: yes
FAO(fisheries: production; publication : search) | FishSource | Sea Around Us

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Internet sources

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 9 - 22.9, mean 12.8 (based on 76 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00431 - 0.01683), b=3.05 (2.89 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  4.3   ±0.70 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (K=0.13; tm=4; tmax=20).
Vulnerability (Ref. 59153):  High to very high vulnerability (70 of 100) .
Price category (Ref. 80766):   Very high.