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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