Acipenser medirostris, Green sturgeon : fisheries, gamefish

Acipenser medirostris Ayres, 1854

Green sturgeon
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Acipenser medirostris   AquaMaps   Data sources: GBIF OBIS
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Acipenser medirostris
Picture by Gotshall, D.W.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335);  medirostris: The specific name is derived from medirostris, referring to its moderate snout (Ref. 1998).  More on author: Ayres.

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

; marina; sötvatten; brackvatten bottenlevande; anadrom (Ref. 120652); djupintervall 0 - 80 m (Ref. 50610).   Temperate; 10°C - 20°C (Ref. 2059); 65°N - 32°N, 166°W - 114°W (Ref. 54261)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

North America: Aleutian Islands and the Gulf of Alaska to Ensenada, Mexico. Considered vulnerable in Canada. The Asian population is now considered to be a separate species Acipenser mikadoi (Ref. 6866). International trade restricted (CITES II, since 1.4.98; CMS Appendix II).

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 166 - ? cm
Max length : 270 cm TL hane/ej könsbestämd; (Ref. 96339); common length : 130 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 159.0 kg (Ref. 2850); rapporterad maxålder: 60 år (Ref. 72476)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 33-35; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 22 - 28. Characterized by a single row of 1 to 4 bony plates along the midventral line between the anus and the anal fin, and about 33 to 35 rays in the dorsal fin. Dorsal arises at posterior third of the total length; anal fin arises under posterior part of dorsal; pectorals originate low on the body just behind gill opening and are large and rounded; pelvic fins arise near the anus. Generally olive to dark green, lower parts more or less whitish green; a longitudinal olive-green stripe on side between lateral and ventrolateral plates, another on midventral surface; fins grayish to pale green (Ref. 27547). Barbels usually situated closer to mouth than to snout tip; coloration of scutes along side paler than skin (Ref. 86798).

Biologi     Ordlista (t.ex. epibenthic)

Found in estuaries, lower reaches of large rivers, and in salt or brackish water off river mouths (Ref. 5723). Probably spawns in fresh water (Ref. 27547). May cover considerable distances in the ocean (Ref. 27547). Edible but with a disagreeable taste and unpleasant odor (Ref. 1998).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 123251)

  Near Threatened (NT) ; Date assessed: 31 January 2006

CITES (Ref. 123416)


Threat to humans

  Harmless





Human uses

Fiskeri: mindre kommeriell; sportfisk: ja
FAO - fiskeri: landings, species profile; Publication: search | FishSource | Sea Around Us

Ytterligare information

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Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - fiskeri: landings, species profile; 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, sök | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 9.1 - 12.7, mean 10.6 °C (based on 50 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00143 - 0.00732), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.5   ±0.52 se; based on food items.
Generation time: 12.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.05-0.09).
Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100) .
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 19 [10, 36] mg/100g ; Iron = 0.248 [0.153, 0.411] mg/100g ; Protein = 16.8 [14.0, 19.6] % ; Omega3 = 0.709 [0.353, 1.439] g/100g ; Selenium = 33.1 [15.1, 82.6] μg/100g ; VitaminA = 5.56 [1.74, 16.81] μg/100g ; Zinc = 0.482 [0.324, 0.737] mg/100g (wet weight);