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Alosa tanaica (Grimm, 1901)

Black Sea shad
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alosa tanaica   AquaMaps   Data sources: GBIF OBIS
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Image of Alosa tanaica (Black Sea shad)
Alosa tanaica
Picture by Otel, V.

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Alosidae (Shads and Sardines)
Etymology: Alosa: Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335).

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

بحري; المياه العذبة; مياه مخلوطة; أسماك صاعدة (Ref. 51243); نطاق العمق 50 - 70 m (Ref. 59043). Temperate; 48°N - 40°N, 26°E - 44°E

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Eurasia: Black Sea and Sea of Azov from where adults ascend rivers, migrating a short distance upstream to spawn.

الحجم / وزن / العمر

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL ذكر/ مختلط الجنس; (Ref. 96734); أعلا وزن تم نشرة: 59.00 g (Ref. 593)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

Distinguished from its congeners entering freshwater in Black Sea basins by having 66-96 gill rakers, longer than branchial filaments and poorly-developed teeth on palatine and vomer (Ref. 59043).

أحياء     المصطلحات (على سبيل المثال epibenthic)

This species migrates from sea to mouth and lower reaches of large rivers (at 1-2 years) and spawns in fresh or slightly brackish water, usually close to the shore, upper 2-4 m, in almost still water bodies as flood plains or lakes. Many individuals spawn 2-4 seasons and spawners appear along the coast in late January to March, enter rivers when temperature reaches about 10°C in late April to May, and spawns at about 15°C or beyond in May to June. Eggs are bathypelagic or sink to bottom. Spent fish migrate to estuarine and coastal lagoons or to sea near river mouths to feed and in autumn, move to sea near river mouths to overwinter. Juveniles migrate to sea or estuaries during first summer and remain there until maturity. At sea, feeds on a wide variety of zooplankton (crustaceans), insect larvae and small fish. Populations seem to have stabilized at moderate level after most have declined during the first decades of 20th century due to water pollution. In northern Black Sea, immediate impact is foreseen due to the decline in habitat quality in suitable estuarine ecosystems. On the other hand, the species is still abundant in Azov Sea basin (Ref. 59043).

Life cycle and mating behavior Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

Juveniles migrate to sea or estuaries during their first summer, remaining there until they mature. After 1-2 years, they migrate upriver to breed. Spawners appear along the coast in late January-March, enter rivers when temperature reaches about 10°C, in late April and May. Spawning occurs from May to June on or above 15°C. Spent individuals migrate to estuaries and coastal lagoons or to sea near river mouths to feed. In autumn, they move to the sea to overwinter (Ref. 59043).

المرجع الرئيسي Upload your references | مراجع | المنظم | المتعاونين

Berg, L.S., 1962. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 1, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1948). (Ref. 593)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

  Harmless





استخدامات بشرية

مصائد: تجاري
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مزيد من المعلومات

Trophic ecology
عناصر الغذاء
Diet compositions
Food consumptions
Food rations
مفتريسات
Ecology
البيئة
Population dynamics
Growths
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Length-weight rel.
Length-length rel.
الطول- الترددات
Mass conversions
Recruitments
Abundances
Life cycle
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Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
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جيني
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References
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أدوات

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مصادر علي الأنترنت

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | البحث في مراقبي الأسماك | CISTI | Catalog of Fishes: جنس, الانواع | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: الوراثة, نيوكلوتيدة | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | قاعدة البينات الوطنية | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | شجرة الحياة | Wikipedia: ذهب, بحث | World Records Freshwater Fishing | سجلات علم الحيوانات

Estimates based on models

Preferred temperature (Ref. 123201): 7.6 - 12, mean 7.6 °C (based on 6 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00452 - 0.01334), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
مستوى غذائي (Ref. 69278):  3.7   ±0.4 se; based on size and trophs of closest relatives
المرونه (Ref. 120179):  وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).
فئة السعر (Ref. 80766):   Low.