Классификация / Names
народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный; солоноватоводный донно-пелагический; мигрирует в реке (Ref. 51243). Temperate; 5°C - 25°C (Ref. 12468); 63°N - 43°N, 4°E - 56°E
Eurasia: large rivers draining to Baltic Sea (absent in northern Sweden and Finland north of 62°N), North Sea (Weser, Elbe), Black Sea, Sea of Azov (Don) and Caspian Sea, where it is abundant in Volga, rare in Ural.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm 25.5, range 24 - 27 cm
Max length : 49.0 cm TL самец/пол неопределен; (Ref. 129172); common length : 20.0 cm TL самец/пол неопределен; (Ref. 556); наибольший вес (опубликованные данные): 1.1 kg (Ref. 129172)
Краткое описание
определительные ключи | морфология | морфометрия
Differs from Ballerus sapa by having superior mouth, 62-77 scales on lateral line, and small eye with diameter about 2/3 of snout length in individuals larger than 10 cm SL (Ref. 59043).
Occur in large lowland rivers with backwaters and also in eutrophic lowland lakes. Feed mainly on zooplankton in open water of backwaters and other still water bodies. Spawn along shores of rivers or in backwaters on submerged vegetation and also on gravel in moderate current. Migrate upriver in long distances to suitable spawning sites. Juveniles stay in backwaters and flooded zones along rivers. Enter freshened parts of seas to forage. Life span reaches more than 10 years. Locally threatened by habitat alterations along river banks (Ref. 59043).
Mostly spawn several times during their life. Spawning lasts usually for 1-2 weeks. Female spawn once a year. Male often guard spawning territories along the shoreline (Ref. 59043).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00593 - 0.00736), b=3.13 (3.10 - 3.16), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.36 se; based on food items.
Generation time: 6.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (K=0.18-0.19; tm=4-5).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).
