分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水; 半鹹淡水 居於水底的; pH range: 7.2 - 8.0; dH range: 10 - 25. 溫帶; 8°C - 22°C (Ref. 12468); 50°N - 43°N, 15°E - 40°E
Europe: Northern Black Sea basin from Danube (up to Vienna) to Kuban drainages; Caspian basin (Volga and Ural drainages).
歐洲: 到窩瓦河與烏拉山脈的河多瑙河。 在伯恩公約的附錄 3 中 (受保育的動物群).
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 25.0, range 20 - 30 cm
Max length : 40.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 59043); 最大年齡: 12 年 (Ref. 59043)
Distinguished uniquely from congeners in Europe by the absence of canine teeth. Differs further by the combination of the following characters: second dorsal fin with 19-21½ branched rays; 70-83 scales on lateral line; and cheek scaled (Ref. 59043).
Body shape (shape guide): fusiform / normal.
Inhabits large, turbid rivers and lakes, and brackish coastal lakes and estuaries. Most active at dusk and dawn. Feeds on small fish and invertebrates. Larvae and juveniles are pelagic and feed on zooplankton. Attains first sexual maturity at 3-4 years of age and 20-30 cm SL. Spawns in April-May. May undertake short spawning migrations (Ref. 59043).
棲息於河。 也發現於在河口附近的半淡鹹水。 較小的魚捕食附著於河床的甲殼動物。 較大的魚吃魚苗的魚群而且吃小的棲木, 鱸〔河鱸〕〔Perca fluviatilis〕與 ruffe , 梅花鱸〔Gymnocephalus cernuus〕 ,.(參考文獻 9696)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Individual females spawn 2-3 portions of eggs. May undertake short spawning migrations. Males are territorial. They excavate shallow depressions in sand or gravel, or exposed plant roots where eggs are deposited, usually along shallow shores at 1-2 m depth (Ref. 59043).歐洲: 到窩瓦河與烏拉山脈的河多瑙河。 在伯恩公約的附錄 3 中 (受保育的動物群).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 29 May 2022
人類使用
漁業: 商業性; 游釣魚種: 是的
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00342 - 0.02024), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
4.1 ±0.66 se; based on food items. |
回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate to high vulnerability (52 of 100). 🛈 |
價格種類 (Ref. 80766) |
Unknown.
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