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Atractoscion nobilis (Ayres, 1860)
WHITE WEAKFISH
White Seabass

Life   Vertebrata   Fish   Sciaenidae   Atractoscion

Atractoscion nobilis
www.fao.org Copyright Michel Lamboeuf · 0
Atractoscion nobilis

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Atractoscion nobilis
© Copyright Photographer/SFTEP, 2002 · 0
Atractoscion nobilis
Atractoscion nobilis
© Copyright Photographer/SFTEP, 2002 · 0
Atractoscion nobilis
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Overview
Main identification features Elongate, fusiform, compressed, oval cross-section; eye moderate; mouth at front, weakly oblique, ends at rear of eye, lower jaw slightly projecting; no barbels on chin; teeth in multiple rows, front teeth pointed but are not canines; preopercle smooth; 13-18 rakers on 1st gill arch; raised ridge down center of belly; dorsal with long base, deep notch, X-XI, 19-23; anal II, 9-10, spines thin and short, 2nd spine ~1/2 length of 1st ray; pectoral and pelvics short; tail straight to slightly concave; scales small, all rough except smooth around eye, 70-85 on lateral line, fins not scaly.

Metallic blue to coppery above, with dark specks; belly silver; inner base of pectoral with black blotch; juveniles 3-6 dark bars on upper back, dusky yellow fins.

Size: 166 cm; 38 kg..

Habitat: rocky and algal bottoms.

Depth: 1-125 m.

Alaska to the Gulf of California.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos).
Depth Range Max: 125 m.
Depth Range Min: 1 m.
Diet: octopus/squid/cuttlefish; bony fishes.
Eastern Pacific Range: Northern limit=50; Southern limit=22; Western limit=-124; Eastern limit=-106; Latitudinal range=28; Longitudinal range=18.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Estuary; Reef associated (reef + edges-water column & soft bottom); Sand & gravel; Rocks; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Reef (rock &/or coral); Reef and soft bottom.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 166 cm.
Regional Endemism: Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; Continent only; All species.
Residency: Resident.
Salinity: Marine; Brackish.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Ayres, W. O., 1860., Description of fishes., Proceedings of the California Academy of Sciences (Series 1), 2:77-81.
  • Breder, C.M. Jr., 1936., Scientific results of the second oceanographic expedition of the "Pawnee" 1926. Heterosomata to Pediculati from Panama to Lower California., Bull. Bingham Oceanogr. Collect. Yale Univ., 2(3):1-56.
  • Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142.
  • Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
  • Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen III. Vertebrados - Parte 2., FAO3:1201-1813.
  • Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Minckley, W.L., 2002., Fishes of the lowermost colorado river, its delta, and estuary: a commentary on biotic change. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:63-78.
  • Pondella II, D.J., Gintert, B.E., Cobb, J.R., Allen, L.G., 2005., Biogeography of the nearshore rocky-reef fishes at the southern and Baja California islands., Journal of Biogeography, 32:187-201.

Acknowledgements

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Number of matches : 2
Query: SELECT * FROM img WHERE ready=1 and taxon like "Atractoscion nobilis%" and (lifeform != "specimen_tag" OR lifeform != "Animal") ORDER BY taxon

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Atractoscion nobilis
Atractoscion nobilis
White Sea Bass
ID: 0000 0000 0106 1481 [detail]
© 2006 Joseph Dougherty/ecology.org

Atractoscion nobilis
Atractoscion nobilis
White Sea Bass
ID: 0000 0000 0106 1482 [detail]
© 2006 Joseph Dougherty/ecology.org

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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Atractoscion&speciesname=nobilis ---> http://www.fishbase.se/summary/Atractoscion-nobilis.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Atractoscion nobilis   (Ayres, 1860)

White weakfish Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Atractoscion nobilis   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image 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: L m   ?   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. 115185 )

  Least Concern (LC)  

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 ):  PD 50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00813 (0.00419 - 0.01578), b=3.06 (2.90 - 3.22), 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). Prior r = 0.42, 2 SD range = 0.23 - 0.80, log(r) = -0.87, SD log(r) = 0.32, Based on: 1 M, 1 K, 1 tgen, 1 tmax, records Vulnerability (Ref. 59153 ):  High to very high vulnerability (70 of 100) . Price category (Ref. 80766 ):   Very high .

Entered by Froese, Rainer Modified by Reyes, Rodolfo B. Fish Forum
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