個人による観察記録の追加 Fish Watcher
| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Anguilla rostrata AquaMaps Data sources: GBIF OBIS |
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Anguilliformes (Eels and morays) > Anguillidae (Freshwater eels)
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335); rostrata: From the words Anguilla-Latin for eel and rostrata, meaning long nose (Ref. 10294).
More on author: Lesueur.
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335); rostrata: From the words Anguilla-Latin for eel and rostrata, meaning long nose (Ref. 10294).
More on author: Lesueur.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
海; 新鮮な水; 汽水性の 底生の; 降流性の (Ref. 26938); 深さの範囲 0 - 464 m (Ref. 57178). Subtropical; 4°C - 25°C (Ref. 12468); 66°N - 5°N, 98°W - 21°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
Northwest to western Central Atlantic: Greenland south along the Atlantic coast of Canada and the USA to Panama, and throughout much of the West Indies south to Trinidad.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 68.5, range 37 - 100 cm
Max length : 152 cm TL オス/雌雄の選別がない; (Ref. 26938); 122.0 cm TL (female); common length : 50.0 cm TL オス/雌雄の選別がない; (Ref. 3242); 最大公表体重: 7.3 kg (Ref. 4699); 最大記録サイズ: 43 年 (Ref. 40922)
Max length : 152 cm TL オス/雌雄の選別がない; (Ref. 26938); 122.0 cm TL (female); common length : 50.0 cm TL オス/雌雄の選別がない; (Ref. 3242); 最大公表体重: 7.3 kg (Ref. 4699); 最大記録サイズ: 43 年 (Ref. 40922)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 肛門の骨: 0. Head rather long; eyes small and placed well forward on head. Lips thick. Caudal vertebrae without transverse processes. Premaxillae not developed as distinct elements in adults. Frontal bones paired, not grown together. Pectoral girdle with 7 to 9 (up to 11 in the young) radial elements. Adults usually white or light-colored below and brownish to blue-black above, but coloration is variable; young with some yellow on the edges of the dorsal and anal fins (Ref. 30499). Caudal fin rounded, joined to dorsal and anal fins. Gill opening on side in front of lower half of well-developed pectoral fin; lower jaw longer than upper; 103-111 vertebrae (Ref. 26938).
Body shape (shape guide): eel-like.
Body shape (shape guide): eel-like.
Occurs in streams, rivers, muddy or silt-bottomed lakes (Ref. 5951); usually in permanent streams with continuous flow (Ref. 86798). Hides during the day in undercut banks and in deep pools near logs and boulders (Ref. 86798). Feeds on larvae of Ephemeroptera, Odonata, Plecoptera, Coleoptera, Trichoptera, and Lepidoptera, as well as gastropods, oligochaetes, amphipods, isopods, mysids, and fish from the families Percidae, Cyprinidae, Ictaluridae, Catostomidae and Anguillidae (Ref. 9593). Migrates in autumn to the Sargasso Sea to spawn (Ref. 3242). Sexual maturity occurs approximately in less than10 years and up to 40 years in freshwater (Ref. 57533). Larvae (transparent leptocephali shaped somewhat like a willow leaf) hatch and develop at sea to metamorphose into elvers in nearshore waters and estuaries (Ref. 57533). Adults are caught with eel pots and trot lines. Elvers and glass eels are caught with fine mesh fyke nets and dipnets. Catadromous species. (Ref. 26938). Maximum depth reported taken from Ref. 57178.
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Semelparous (Ref. 30499). Undertakes migration in autumn to the Sargasso Sea where spawning is said to take place. Coloration changes with sexual maturation. Dorsal surface of the pectorals becomes dark, lateral line becomes prominent, eye diameter increases and visual pigments change, body takes on a silvery bronze coloration. Females are usually larger than males and migrate much farther upstream (Ref. 57533).
Spawn at sea but growth occurs in estuaries or freshwater (Ref. 7135). Spawning grounds believed to be between 20° and 30°N and 60°and 75°W (Ref. 40916, 40917).
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) (A2bd); Date assessed: 08 November 2020
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 商業; 水産養殖: 商業; ゲームフィッシュ: はい; 水族館・水槽: 公共の水族館
FAO - 養殖システム: production search水産業: landings search; Publication: search | FishSource | 私達の周りの海
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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 | DORIS | ECOTOX | FAO - 養殖システム: production search水産業: landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | 国のデーターベース | 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=0.00087 (0.00070 - 0.00108), b=3.19 (3.14 - 3.24), in cm total length, based on LWR estimates for this species (Ref. 93245). |
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栄養段階 (参照 69278) |
3.8 ±0.2 se; based on diet studies. |
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回復力 (参照 120179) |
低い, ４．５年～１４年の倍増期間の最小個体群 (tm=3-6; tmax=43; Fec=5,000,000). |
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漁業の脆弱性 (Ref. 59153) |
High to very high vulnerability (72 of 100). 🛈 |
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気候脆弱性 (Ref. 125649) |
High vulnerability (60 of 100). 🛈 |
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価格帯 (Ref. 80766) |
Unknown. |
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栄養素 (Ref. 124155) |
Calcium = 32.2 [19.9, 67.1] mg/100g; Iron = 0.734 [0.430, 1.146] mg/100g; Protein = 19.6 [17.8, 21.5] %; Omega3 = 0.367 [0.197, 0.697] g/100g; Selenium = 56 [29, 105] μg/100g; VitaminA = 8.64 [1.82, 42.50] μg/100g; Zinc = 0.64 [0.46, 0.92] mg/100g (wet weight); based on nutrient studies. |