分類 / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii
輻鰭魚綱 (條鰭魚) >
Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335). More on author: Linnaeus.
環境 / 氣候 / 範圍
生態學
; 淡水; 半鹹淡水 居於水底的; 河川洄游 (Ref. 51243); 深度上下限 1 - ? m. , preferred 13°C (Ref. 107945); 72°N - 40°N, 12°E - 103°E
Eurasia: rivers draining to Black, Azov and Caspian Seas; Siberia from Ob eastward to Yenisei drainages. Introduced throughout Europe, without formation of self-sustaining populations. Appendix III of the Bern Convention (protected fauna). International trade restricted (CITES II, since 1.4.98; CMS Appendix II for Danube population).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 43.0, range 40 - 45 cm
Max length : 125 cm TL 雄魚/尚未辨別雌雄; (Ref. 6866); common length : 40.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 556); 最大體重: 16.0 kg (Ref. 593); 最大年齡: 20 年 (Ref. 556)
簡短描述
型態特徵 | 形態測量圖
背棘 (總數): 13; 背的軟條 (總數): 28; 臀棘 9; 臀鰭軟條: 14 - 18. Back and flanks are beige. Five rows of scutes : 12-17D, 57-71L, 10-19V. Ventrals and laterals are very light-colored, nearly white. Narrow and pointed snout with four long and fringed barbels. Inferior lip clearly slit (Ref. 40476). Can be diagnosed from congeners in Europe by having 56-71 lateral scutes, first dorsal scute not fused with head, barbels fimbriate, lower lip interrupted in middle and 11-27 gill rakers (Ref. 59043).
A fluvial fish which inhabits rivers and their tributaries (Ref. 9696). Occurs in large rivers, usually in the current and in deep water. Moves to flooded areas to feed (Ref. 59043). Chiefly potamodromous (Ref. 58897). Like other sturgeons, it aggregates in bottom holes in winter and exhibits little activity. In spring, when ice breaks, it rises from the bottom holes and moves upstream for spawning (Ref. 593). Spawns in habitats with strong-current on gravel, rarely on gravel-sand bottom or in flooded sites. Juveniles stay in riverine habitats during their first summer. Classified as endangered species. Anadromous populations are now extirpated; local populations are still surviving in most parts of range (Ref. 59043).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Scatters eggs on gravel.
Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)
人類使用
Can't connect to MySQL database (fbapp). Errorcode: Too many connections
