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Acipenser fulvescens Rafinesque, 1817

Lake sturgeon
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Image of Acipenser fulvescens (Lake sturgeon)
Acipenser fulvescens
Picture by The Native Fish Conservancy

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | 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 البيئة

; المياه العذبة; مياه مخلوطة القاع; سمكة نهرية (Ref. 51243); نطاق العمق 5 - 9 m (Ref. 117245). Temperate; 60°N - 30°N, 100°W - 71°W

التوزيع دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri

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

Length at first maturity / الحجم / وزن / العمر

Maturity: Lm 99.7, range 90 - 120 cm
Max length : 274 cm TL ذكر/ مختلط الجنس; (Ref. 5723); common length : 97.5 cm TL ذكر/ مختلط الجنس; (Ref. 12193); أعلا وزن تم نشرة: 125.0 kg (Ref. 3672); العمر: 152 سنين (Ref. 72475)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

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).

أحياء     المصطلحات (على سبيل المثال 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 | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

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

المرجع الرئيسي Upload your references | مراجع | المنظم | المتعاونين

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. 130435)

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

CITES


خطر للأنسان

  Harmless





استخدامات بشرية

مصائد: تجاري; الأستزراع المائي: التجريبي; لعبة سمكه: نعم; حوض مائي: احواض مائية عامة
FAO - مصائد: ملف الأنواع; Publication: search | FishSource |

مزيد من المعلومات

Trophic ecology
عناصر الغذاء
Diet compositions
Food consumptions
Food rations
مفتريسات
Ecology
البيئة
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
الطول- الترددات
Mass conversions
Recruitments
Abundances
Life cycle
التكاثر
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
حركة انتقال اليرقات
Anatomy
Gill areas
دماغ
عظمة الأذن
Physiology
Body compositions
Nutrients
Oxygen consumptions
نوع السباحة
Swimming speeds
Visual pigment(s)
أصوات الأسماك
Diseases / Parasites
Toxicities (LC50s)
Genetics
جيني
Electrophoreses
Heritabilities
Human related
Aquaculture systems
ملامح تربية الأحياء المائية
سلالات
Ciguatera cases
Stamps, coins, misc.
Taxonomy
الأسماء الشائعة
مرادفات
الوصف الخارجي
قياسات المظهر الخارجي
صور
References
مراجع

أدوات

تقارير خاصة

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مصادر علي الأنترنت

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).
مستوى غذائي (Ref. 69278):  3.3   ±0.49 se; based on food items.
المرونه (Ref. 120179):  منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (tm=16-26; tmax=97; K=0.04; Fec=50,000).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (86 of 100).
فئة السعر (Ref. 80766):   Unknown.