Hayvonot dunyosining zamonaviy sistemasi



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Acipenseriformes 
Family 1. 
Acipenseridae
Bonaparte, 1832
1.
Acipenser nudiventris 
Lovetzky, 1828 – Bastard sturgeon.
2.
Pseudoscaphirhynchus fedtschenkoi 
(Kessler, 1872) – Syr Darya sturgeon.
ORDER II. 
Salmoniformes
Family 2. 
Salmonidae
Cuvier, 1816
3.
Salmo trutta 
Linnaeus, 1758 – Aral Sea trout.
ORDER III.
 Cypriniformes
Family 3. 
Cyprinidae
Fleming, 1822 
 
4.
Alburnoides oblongus 
Bulgakow, 1907 – Tashkent riffle bleak.
5.
Aspiolucius esocinus 
(Kessler, 1874) – Pike asp.
6.
Luciobarbus brachycephalus 
Kessler, 1872 – Aral barbel.
7.
Luciobarbus capito 
Güldenstädt, 1773 – Bulatmai barbel.
8.
Capoetobrama kuschakewitschi 
(Kessler, 1872) – Sharpray.
9.
Leuciscus idus 
Linnaeus, 1758 – Ide.
Family 4. 
Cobitidae
Swainson, 1839
10.
Sabanejewia aurata 
De Filippi, 1863 – Golden spined loach.
Family 5. 
Nemacheilidae
Regan, 1911 
11.
Iskandaria kuschakewitschi
Herzenstein, 1890 - Kuschakewitsch loach.
ORDER IV. 
Siluriformes 
Family 6. 
Sisoridae
Bleeker, 1858
12.
Glyptosternon reticulatum 
McClelland & Griffith, 1842 – Turkestan catfish.
ORDER V. 
Scorpaeniformes
Family 7. 
Cottidae
Bonoparte, 1831
13.
Cottus gobio 
Linnaeus, 1758 – Bullhead.
14.
Cottus spinulosus 
Kessler, 1872 – Turkestan sculpin.
The limiting factors for the fish living conditions in Uzbekistan, which need protection, are the 
lowering of the level and salinity of the Aral Sea water, which, as a result of the artificial distribution 
of the flow of the Amu Darya and Syr Darya rivers that flow into it, the following changes take place: 
pollution and water regime change, deterioration of the conditions for water addition, the competition 
of acclimatized and alien fish, mud flows, recreational activities and poaching [1], [2], [5], [6], [7]. In 
addition, the reason for the second limited factor is dramatic destruction of 
Acipenser nudiventris
is in 
the 1936-1937 years of mass infection of fish disease [2]. And what is the limiting factor for Aral Sea 
trout is still unknown [7]. 
All representatives of sturgeon found in our reservoirs are included in the IUCN red list as in 
need of protection, and now on the verge of complete destruction [2], [5]. 
The Aral Sea trout was always on small amount; this species was last caught in 1937, at this 
time it completely disappeared from the earth's surface [7]. The Bastard sturgeon (
Acipenser 
nudiventris
) and Aral barbel (
Luciobarbus brachycephalus
) in the last 20 years almost did not appear 
in the water reservoirs of the Fergana Valley [5]. 
In spite of designed for the protection measures, banned fishing and being carefully protected 
by the existing population of fish, no species in the practice became the subject of reproduction [5],[6]. 
In conclusion, based on the above analyzes, the following can be noted: 
conducting regular monitoring of protected and other fish distributed in the waters of the 
Fergana Valley; 


14 
prevention of pollution of water bodies by industrial waste, development of measures to clean 
up polluted water bodies
prohibiting the chaotic and complete catching of fish species in need of protection; 
implementation of planned scientific research work related to the biology and ecology of fish in 
need of protection; 
implementation of large-scale propaganda work among the people would be consistent with the 
set goal. 

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