Huso dauricus, Kaluga : fisheries

Huso dauricus (Georgi, 1775)

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Image of Huso dauricus (Kaluga)
Huso dauricus
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ماهبان شعاع باله > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Huso: Latin, huso = swine (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

; دريايي; آب شيرين; لب شور نزديك كف زي; رود کوچ (Ref. 51243); تغييرات عمق 0 - 50 m (Ref. 50550).   Temperate; 10°C - 20°C (Ref. 2059); 55°N - 43°N

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

Asia: Amur basin, ascending far up to the Argun, Shilka, and Onon. In the Amur Liman to the Amur estuary in the Sea of Okhotsk. Adults inhabit some lakes, like Orel Lake above Nikolaevsk. Also in the Ussuri and Sungari, China. International trade restricted (CITES II, since 1.4.98; CMS Appendix II). Four populations are recognized in the Amur River basin: one lives in the estuary and coastal brackish waters of the Sea of Okhotsk and Sea of Japan, second is found in the lower Amur, third in the middle Amur, and fourth in the lower reaches of the Zeya and Bureya rivers in the Russian river banks (Ref. 40142). Two ecological morphs are present in the estuary population, the 'freshwater' and the 'brackish' water forms (Ref. 40142).

Length at first maturity / Size / Weight / سن

Maturity: Lm ?, range 170 - 190 cm
Max length : 560 cm TL جنس نر / بدون خواص جنسي; (Ref. 40142); بيشينه وزن گزارش شده: 1.0 t (Ref. 40142); بيشينه سن گزارش شده: 80 سال ها (Ref. 56448)

توصيف مختصر ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل): 0; شعاع نرم باله پشتي (کل): 43-57; خارهاي باله مخرجي 0; شعاع نرم باله مخرجي: 26 - 35. Gill membranes free from isthmus and broadly connected with each other. Barbels flat, attached on ventral side of snout. Body shields in 5 rows; dorsal shields 10 to 16, lateral 32 to 46 and ventral 8 to 12.

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

Adults inhabit rivers and lakes. Adults do not spawn every year but at least every other year. With increasing age, the spawning interval increases to three, four and more years (Ref. 593). Feed on invertebrates in the first year then switch to juveniles of pelagic fishes, e.g., Oncorhynchus keta, at age 3 to 4 yrs., kaluga feed on adult fishes (Ref. 40142).

Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)

Males spawn once in three to four years while females do every four to five years (Ref. 40142). Water temperature affects the onset of maturity of females. Females spawn a year earlier during warm years than they would during cold years (Ref. 40142).

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

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)

وضعيت در فهرست قرمز IUCN (Ref. 123251)

  درمعرض خطر بحرانی (CR) (A2bd); Date assessed: 24 October 2009

CITES (Ref. 118484)

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استفاده انسانی

ماهي گيري – شيلات: تجاري
FAO(ماهي گيري – شيلات: نمايه گونه; publication : search) | FishSource |

اطلاعات بيشتر

اسامي عام
سوخت و ساز
سم شناسي بوم زيستي
تولید مثل
تخم ریزی
Spawning aggregation
تخم ها
نمو تخم
طول - وزن
طول - طول
نوسانات طولی
ريخت ستجي بوسيله انداره گيري
ريخت شناسي
توزاد ( لارو)
پويايي لاروي
آبزي پروري
نمايه آبزي پروري
تواتر آلل ها
بيماري ها
Mass conversion
عکس ها
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گزارش های ويژه

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منابع اينترنتي

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00204 (0.00118 - 0.00354), b=3.18 (3.03 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.4 se; based on diet studies.
Generation time: 36.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
جهندگی (Ref. 120179):  خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (tm=14-23; tmax=55; Fec=600,000).
آسيب پذيری (Ref. 59153):  Very high vulnerability (88 of 100) .
طبقه قيمت (Ref. 80766):   Unknown.