QORADARYO SUV HAVZASINING O‘RTA OQIMIDA UCHROVCHI KUSHAKEVICH YALANG BALIG‘I (ISKANDARIA KUSCHAKEWITSCHI (HERZENSTEIN, 1890) POPULYATSIYASINING MORFOMETRIK KO‘RSATKICHLARI
DOI:
https://doi.org/10.56292/SJFSU/vol31_iss3/a195Keywords:
Iskandaria kuschakewitschi, morfometrik tahlil, plastik belgilar, variatsiya koeffitsiyenti, kvadratik og‘ish, Farg‘ona vodiysi, Qoradaryo, endemik tur, baliq populyatsiyasi, morfologik xususiyatlar, taksonomiya, identifikatsiya, suzgich qanot formulasi, og‘iz mo‘ylovlari, o‘zgaruvchanlik darajasi.Abstract
Mazkur maqolada Iskandaria kuschakewitschi (Herzenstein, 1890) – Kushakevich yalangbaligʻi, Sirdaryo havzasi uchun endemik tur sifatida o‘rganilgan. U Farg‘ona vodiysidagi deyarli barcha daryo va soylarda uchraydi hamda Qoradaryo suv havzasining o‘rta oqimida tarqalgan. Tadqiqot davomida Iskandaria kuschakewitschi populyatsiyasining morfometrik ko‘rsatkichlari tahlil qilinib, uning plastik belgilarining o‘lchamlari va baliq populyatsiyasi parametrlari Sd – kvadratik og‘ish hamda V – variatsiya ko‘rsatkichlari asosida baholandi. Ushbu tahlillar populyatsiyalar xilma-xilligini aniqlashga xizmat qildi.
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