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Acipenser ruthenus Linnaeus, 1758

Sterlet sturgeon
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Image of Acipenser ruthenus (Sterlet sturgeon)
Acipenser ruthenus
Picture by Harka, A.


Bulgaria country information

Common names: Chiga
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kottelat, M. and J. Freyhof, 2007
National Database:

Common names from other countries

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
  More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный; солоноватоводный демерсальный; мигрирует в реке (Ref. 51243); пределы глубины 1 - ? m.   Temperate; 71°N - 36°N, 11°E - 111°E (Ref. 124675)

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

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.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 42.8, range 40 - 45 cm
Max length : 125 cm TL самец/пол неопределен; (Ref. 6866); common length : 40.0 cm TL самец/пол неопределен; (Ref. 556); наибольший вес (опубликованные данные): 16.0 kg (Ref. 593); наибольший возраст (опубликованны данные): 20 годы (Ref. 556)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 13; членистые (мягкие) лучи спинного плавника (общее число) : 28; колючие лучи анального плавника: 9; членистые (мягкие) лучи анального плавника: 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).

биология     глоссарий (например epibenthic)

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 Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Scatters eggs on gravel.

Основная ссылка Upload your references | ссылки | координатор | соавторы

Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)

Статус Красного Списка МСОП (Ref. 130435)

  Под угрозой исчезновения (EN) (A2cde); Date assessed: 14 September 2019

CITES (Ref. 128078)


Угроза для людей

  Harmless




Использование человеком

рыболовство: коммерческий; аквакультура (рыбоводство): коммерческий; аквариум: общественные аквариумы
FAO(Aquaculture systems: production; рыболовство: production, Видовой профиль; publication : search) | FishSource | Sea Around Us

дополнительная информация

Trophic ecology
пищевые объекты
Diet compositions
Food consumptions
Food rations
хищники
Ecology
экология
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversions
Recruitments
Abundances
Life cycle
размножение
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
личинки
динамика численности личинок
Anatomy
Gill areas
мозг
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
звуки, издаваемые рыбами
Diseases / Parasites
Toxicities (LC50s)
Genetics
генетика
Electrophoreses
Heritabilities
Human related
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.
Outreach
соавторы
References
ссылки

инструменты

Специальные отчеты

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00141 (0.00081 - 0.00246), b=3.26 (3.11 - 3.41), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.4 se; based on diet studies.
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (tm=5-9; tmax=36; K=0.12; Fec=11,000).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (67 of 100).
Категория цены (Ref. 80766):   Unknown.