分類 / Names
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Esociformes (Pikes and mudminnows) >
Umbridae (Mudminnows)
Etymology: Umbra: Latin, umbra, -ae = shadow, in the sense of phantom; due to its quick movements (Ref. 45335).
More on author: Walbaum.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 6.5; dH range: 5 - ?; 移住性ではない; 深さの範囲 0 - ? m. Temperate; 5°C - 24°C (Ref. 26183); 49°N - 43°N, 9°E - 31°E
Europe: Danube drainage from Vienna to delta; lower reaches of Dniestr drainage.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 17.0 cm TL オス/雌雄の選別がない; (Ref. 26183); common length : 5.0 cm TL オス/雌雄の選別がない; (Ref. 556); 最大記録サイズ: 5 年 (Ref. 59043)
簡単な記述
形態学 | 形態計測学
Differs from Umbra pygmaea by the lack of dark blotch at caudal base, its body and head irregularly strewn with small dark sport, and having 33-35 scales in midlateral series (Ref. 59043).
Facultative air-breathing (Ref. 126274); Adults inhabit small irrigation canals and slowly flowing and stagnant waters with dense vegetation (Ref. 26183), usually in small ditches, oxbows, backwaters and shallow lakes (Ref. 59043). Territorial in shallow pools and swamps. They feed on larger crustacean plankton and invertebrate larvae (Ref. 26183). This species is under threat due to habitat destruction, irrigation works and disappearance of shallow ditches as suitable habitats, restrictions of river inundation, pressure from introduced fish species and chemical pollution (Ref. 26183).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Female guards the brood until hatching (Ref. 26183).
Povz, M., 1995. Threatened fishes of the world: Umbra krameriWalbaum, 1792 (Umbridae). Environ. Biol. Fishes 43(3):232. (Ref. 26183)
Human uses
水産業: 興味がない; 水族館・水槽: 商業
より多くの情報
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6329 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00411 - 0.02546), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.39 se; based on food items.
Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (tm=1; tmax=5; K=0.79; Fec=200).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
