sg
O‘zbekcha

ICHTHYOFAUNA OF THE KARA DARYA: BEFORE AND AFTER THE INTENSIVE IMPACT OF ANTHROPOGENIC FACTORS

Authors

Keywords:

Kara Darya, ichthyofauna, anthropogenic impact, fish diversity, invasive species, acclimatization, fish migration, water basin.

Abstract

The Kara Darya is one of the most significant rivers in the Fergana Valley, playing a crucial role in the formation of the region’s ichthyofauna. Since the second half of the 20th century, the impact of anthropogenic factors on the river has increased significantly. The construction of water dams has severely hindered fish migration. Additionally, after the 1970s, alongside fish species intentionally introduced from the rivers of the Far East for acclimatization, invasive species that were inadvertently introduced also contributed to a dramatic shift in the composition of the ichthyofauna of the Kara Darya. Furthermore, species that were once present in the river, such as Acipenser nudiventris, Pseudoscaphirhynchus fedtschenkoi, and Capoetobrama kuschakewitschi, have become entirely extinct in the Syr Darya basin. Recent studies confirm the presence of 28 fish species in the middle and lower reaches of the Kara Darya, belonging to six orders, 14 families, and 26 genera. This study examines the ichthyofaunal composition of the Kara Darya, its historical and recent changes, and the factors influencing fish diversity in the river.

Author Biographies

  • , Farg‘ona davlat universiteti

    Fargʻona davlat universiteti, katta o‘qituvchisi

  • , Farg‘ona davlat universiteti

    Fargʻona davlat universiteti, b.f.f.d. (PhD)

References

Aladin, N.V., Filippov, A.A., Plotnikov, I.S., Orlova, M.I., Williams, W.D. Changes in the structure and function of biological communities in the Aral Sea, with particular reference to the northern part (Small Aral Sea), 1985–1994. International Journal of Salt Lake Research, 1998, 7, – P. 301-343.

Allayarov, S.K. Amudaryo havzasida tarqalgan Amudaryo yalangbaligʻi – ‘Oxynoemacheilusʼ oxianus (Kessler, 1877) ning morfologik belgilari. “Oʻzbekiston zoologiya fani: hozirgi zamon muammolari va rivojlanish istiqbollari” III Respublika ilmiy-amaliy konferensiya materiallari. Toshkent, 2021, 18-19-noyabr, – B. 167-169.

Fricke, R., Eschmeyer, W.N., Van der Laan R. 2025. Eschmeyer’s Catalog of Fishes: Genera, Species, References. (http://researcharchive.calacademy.org/research/ ichthyology/catalog/fishcatmain.asp).

Froese, R., Pauly, D. Editors. 2024. FishBase. World Wide Web electronic publication. www.fishbase.org, version (10/2024).

Huckstorf, V. 2013. Rhodeus ocellatus. The IUCN Red List of Threatened Species 2013: e.T62207A3109841 (https://www.iucnredlist.org/).

Kamilov, G., Urchinov, Z.U. Fish and fisheries in Uzbekistan under the impact of irrigated agriculture. Inland fisheries under the impact of irrigated agriculture: Central Asia. FAO Fisheries Circular, 1995, 894, – P. 10-41.

Komilova, D. Qoradaryo oʻrta oqimi ixtiofaunasining taksonomik reviziyasi. FarDU. Ilmiy xabarlar, – Fargʻona, 2024. – №3 (Ilova toʻplam). – B. 470-474.

Komilova, D., Qayumova, Y., Sheraliyev, B. Qoradaryo suv havzasi ixtiofaunasining sistematik tur tarkibi Xorazm Maʼmun akademiyasi axborotnomasi, 2020. – №5/1. – B. 22-28.

Mirabdullaev, I.M., Joldasova, I.M., Mustafaeva, Z.A., Kazakhbaev, S., Lyubimova, S.A., Tashmukhamedov, B.A. Succession of the ecosystems of the Aral Sea during its transition from oligohaline to polyhaline water body. Journal of Marine Systems, 2004, 47, – Р. 101-107.

Nedoluzhko, A.V., Sharko, F.S., Tsygankova, S.V., Boulygina, E.S., Barmintseva A.E., Krasivskaya, A.A., Ibragimova, A.S., Gruzdeva, N.M., Rastorguev, S.M., Mugue, N.S. Molecular phylogeny of one extinct and two critically endangered Central Asian sturgeon species (genus Pseudoscaphirhynchus) based on their mitochondrial genomes. Scientific Reports, 2020, 10, e722.

Qayumova, Y. Fargʻona vodiysi yalangbaliqlari (Teleostei: Nemacheilidae) faunasi va ekologiyasi. PhD dissertatsiyasi, Fargʻona, 2022, – 140 b.

Sheraliev, B. Fish diversity in Uzbekistan based on DNA barcoding. PhD Thesis, Chongqing, 2021, – 160 b.

Sheraliev, B. The systematic analysis of the fish fauna of the Fergana valley. European Journal of Biomedical and Life Sciences, 2015, 2, – P. 80-84.

Sheraliev, B., Peng Z. Molecular diversity of Uzbekistanʼs fishes assessed with DNA barcoding. Scientific Reports, 2021, 11, e16894.

Sheraliyev, B., Qayumova, Y., Komilova, D., Allayarov, S., Roʻzimov, A. Oʻzbekiston ixtiofaunasining taksonomik muammolari va ularning potensial yechimlari. “Oʻzbekiston zoologiya fani: hozirgi zamon muammolari va rivojlanish istiqbollari” II Respublika ilmiy-amaliy konferensiya materiallari. Toshkent, 2020, 15-16-oktabr, – B. 206-209.

Sturgeon, Specialist Group. Acipenser nudiventris Aral Sea stock. The IUCN Red List of Threatened Species 1996: e.T251A13048150 (https://www.iucnredlist.org/).

Thoni, R., Simonov, E., Artaev, O., Asylbaeva, S., Aibek, S.U., Levin, B. A century in synonymy: molecular and morphological evidence for the revalidation of Glyptosternon oschanini (Herzenstein, 1889) (Actinopterygii: Sisoridae). Zootaxa, 2017, 4277(3), – P. 435-442.

Балтабаев, А. Ихтиофауна бассейна реки Карадарьи. Автореф. дис. …канд. биол. наук. – Ташкент, 1971. – 42 с.

Берг, Л.С. Рыбы пресных вод СССР и сопредельных стран. Часть I. – Москва-Ленинград: Издательство Академии наук СССР, 1948. – 1-466 c.

Берг, Л.С. Рыбы пресных вод СССР и сопредельных стран. Часть II. – Москва-Ленинград: Издательство Академии наук СССР, 1949. – 467-925 c.

Берг, Л.С. Рыбы пресных вод СССР и сопредельных стран. Часть III. – Москва- Ленинград: Издательство Академии наук СССР, 1949. – 926-1382 c.

Вундцеттель, М.Ф. Эколого-зоогеографический анализ современной ихтиофауны бассейна реки Сырдарьи. Автореф. дис. …док. биол. наук. – Москва, 1994. – 59 с.

Камилов, Г.К., Нуриев Х. Рыбы – Pisces. Султонов М.И. Позвоночные животные Ферганской долины. – Ташкент: Фан, 1974. – 47-58 с.

Салихов, Т.В. Рыбы Амурского комплекса в бассейне реки Сырдарьи // Материалы XVIII научной конференции “Биологические основы рыбного хозяйства водоёмов Средней Азии и Казахстана”. Ташкент, 1983, 27-28 сентябрь, – С. 218-219.

Турдаков, Ф.А. Рыбы Киргизии. – Фрунзе: Издательство Академии наук Киргизской ССР, 1963. – 284 c.

Downloads

Published

2025-07-28

Issue

No. 2 (2025): FarDU ilmiy xabarlari jurnali (Tabiiy fanlar)

Section

Scientific information

License

Copyright (c) 2025 Scientific journal of the Fergana State University

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Most read articles by the same author(s)

<< < 1 2 3 4 > >>