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Acipenser fulvescens Rafinesque, 1817

Lake sturgeon
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Image of Acipenser fulvescens (Lake sturgeon)
Acipenser fulvescens
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رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335);  fulvescens: From the words Acipenser, meaning sturgeon and fulvescens, yellowish (Ref. 10294).
More on author: Rafinesque.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

; آب شيرين; لب شور نزديك كف زي; رود رو (Ref. 51243); تغييرات عمق 5 - 9 m (Ref. 117245). Temperate; 60°N - 30°N, 100°W - 71°W

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins.

Length at first maturity / Size / Weight / سن

Maturity: Lm 99.7, range 90 - 120 cm
Max length : 274 cm TL جنس نر / بدون خواص جنسي; (Ref. 5723); common length : 97.5 cm TL جنس نر / بدون خواص جنسي; (Ref. 12193); بيشينه وزن گزارش شده: 125.0 kg (Ref. 3672); بيشينه سن گزارش شده: 152 سال ها (Ref. 72475)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

Single row of preanal shields. Soft area on the top of the head absent and black viscera. Large blotches present on anterior half of upper surface of snout and on back. Lower surface whitish (Ref. 37032). Anal fin origin behind dorsal fin origin; scutes on back and along side same color as skin (Ref. 86798).

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

Inhabits bottom of lakes and large rivers (Ref. 10294), usually in 5-9 m depth, over mud, sand, and gravel. Occasionally enters brackish water. A specimen caught in 1952 was reputed to have been 152 years old (Ref. 6866). Search for food, with the aid of the sensory ability of the barbels, by constantly moving close to the substrate. Omnivorous, virtually anything edible that enters the mouth is sucked up and consumed. The food is worked or pulled in the mouth, often partly ejected and sucked in again (Ref. 1998). Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542). In the 1800s, it was extensively exploited for oil to fire boilers on steamboats, animal feed and fertilizer. Later is was high-valued as smoked, caviar and isinglass (Ref. 117245). In 1951, Canada, 2,000 lbs. of caviar were made from the eggs (Ref. 37032). It continous to be an important source of food for Indigenous people in North America (Ref. 117245). Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542).

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

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)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

  در معرض خطر (EN) (A2bcd); Date assessed: 14 September 2019

CITES


خطر برای انسان ها

  Harmless





استفاده انسانی

ماهي گيري – شيلات: تجاري; آبزي پروري: آزمايشي; ماهي ها ي سرگرم كننده: بله; آكواريوم: آکواریوم عمومی
FAO - ماهي گيري – شيلات: نمايه گونه; Publication: search | FishSource |

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances
Life cycle
تولید مثل
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
توزاد ( لارو)
پويايي لاروي
Anatomy
Gill areas
مغزها
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
صداهاي ماهي ها
Diseases / Parasites
Toxicities (LC50s)
Genetics
ژنتيك
Electrophoreses
Heritabilities
Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.
Outreach
همكاران
Taxonomy
اسامي عام
مترادف
ريخت شناسي
ريخت ستجي بوسيله انداره گيري
عکس ها
References
مراجع

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00219 - 0.00363), b=3.18 (3.13 - 3.23), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.49 se; based on food items.
جهندگی (Ref. 120179):  خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (tm=16-26; tmax=97; K=0.04; Fec=50,000).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (86 of 100).
طبقه قيمت (Ref. 80766):   Unknown.