Acipenser fulvescens Rafinesque, 1817
Lake sturgeon
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons)
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
More on author: Rafinesque.
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
More on author: Rafinesque.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水; 汽水性の 底生の; potamodromous (Ref. 116361); 深さの範囲 5 - 9 m (Ref. 117245). Temperate; 60°N - 30°N, 100°W - 71°W
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 99.7, range 90 - 120 cm
Max length : 274 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 97.5 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大公表体重: 125.0 kg (Ref. 3672); 最大記録サイズ: 152 年 (Ref. 72475)
Max length : 274 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 97.5 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大公表体重: 125.0 kg (Ref. 3672); 最大記録サイズ: 152 年 (Ref. 72475)
簡単な記述 検索表 | 形態学 | 形態計測学
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).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Adults inhabit 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).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (A2bcd); Date assessed: 14 September 2019
人間に対する脅威
Harmless
人間の用途
水産業: 商業; 水産養殖: 実験の; ゲームフィッシュ: はい; 水族館・水槽: 公共の水族館
FAO - 水産業: 種の外形; Publication: search | FishSource |
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インターネットの情報源
AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: 部類, 種 | DiscoverLife | ECOTOX | FAO - 水産業: 種の外形; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 生命の木 | Wikipedia: 行く, 検索する | World Records Freshwater Fishing | 動物に関する記録
モデルに基づく推定値
|
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00269 (0.00213 - 0.00340), b=3.19 (3.14 - 3.24), in cm total length, based on LWR estimates for this species (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.3 ±0.49 se; based on food items. |
|
回復力 (参照 120179) |
非常に低い, １４年以上の倍増期間の最小個体群 (tm=16-26; tmax=152; K=0.04; Fec=50,000). |
|
漁業の脆弱性 (Ref. 59153) |
Very high vulnerability (86 of 100). 🛈 |
|
価格帯 (Ref. 80766) |
Unknown. |