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> 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 पारिस्थितिकी

; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; पोटामोड़िरोमस (Ref. 51243); गहराई सीमा 5 - 9 m (Ref. 117245). Temperate; 60°N - 30°N, 100°W - 71°W

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

Length at first maturity / आकार / वज़न / Age

Maturity: L_m 99.7, range 90 - 120 cm
Max length : 274 cm TL पुल्लिंग / अलिंग; (Ref. 5723); common length : 97.5 cm TL पुल्लिंग / अलिंग; (Ref. 12193); अधिकतम प्रकाशित वज़न: 125.0 kg (Ref. 3672); अधिकतम सूचित उम्र: 152 वर्षो (Ref. 72475)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

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).

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 | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

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

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

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)

Endangered (EN) (A2bcd); Date assessed: 14 September 2019

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; जलीयकृषि: प्रयोगात्मक; आखेट मत्स्य: हां; जलजीवालय: सार्वजनिक लजीवालय

FAO - मात्स्यिकी: species profile; Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
Diet compositions
Food consumptions
Food rations
परभक्षी

Ecology
पारिस्थितिकी

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
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Maturities
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Spawnings
Spawning aggregations
Egg(s)
Egg developments
लार्वा
लारवल गतिकी

Distribution
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Anatomy
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Physiology
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Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)

Genetics
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Human related
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Ciguatera cases
Stamps, coins, misc.

Outreach
सहयोगीयो

Taxonomy
आम नाम
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Summary page | Point data | आम नाम | Photos

इंटरनेट स्रोत

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.

लौटाव (Ref. 120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (tm=16-26; tmax=97; K=0.04; Fec=50,000).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (86 of 100).

Price category (Ref. 80766): Unknown.

Acipenser fulvescens Rafinesque, 1817