Diatoms of the Sufi Chai River in northwest Iran

Document Type : Research Paper

Authors

1 Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Iran

2 Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Iran & Faculty of Biology, University of Bremen, Germany

10.22092/ijb.2025.366644.1479

Abstract

Iran is the second-largest country in the Middle East with diverse eco-regions. East Azerbaijan, the northwestern province of Iran, has diverse ecosystems of lakes, rivers, springs, wetlands, and waterfalls. However, despite the numerous riverine ecosystems, few studies have been conducted on the diatom flora of the region. This study focuses on the Sufi Chai River diatom flora in East Azerbaijan, Iran. The river flows approximately 55 km and originates from the Sahand Mountain, substantially modified in several locations, and flows through the Qaraqishlaq Wetland before reaching Lake Urmia. In the present study, algal samples were taken from seven stations upstream and downstream of the Sufi Chai River during winter, spring, summer, and autumn in 2020. The sample preparation was performed using the hot hydrogen peroxide method, and finally, 90 diatom taxa were identified in this study. The findings showed that the highest species diversity (16 spp.) belongs to the genus Nitzschia. Furthermore, we identified 21 new records that have not been previously reported in the diatom flora of Iran.

Keywords

Article Title [Persian]

دیاتومه‌های رودخانه صوفی‌چای در شمال‌غرب ایران

Authors [Persian]

  • سعید چرندابی 1
  • احسان عطازاده 2
1 دانش آموخته کارشناسی ارشد، گروه زیست شناسی گیاهی، دانشکده علوم طبیعی، دانشگاه تبریز، ایران
2 دانشیار گروه زیست شناسی گیاهی، دانشکده علوم طبیعی، دانشگاه تبریز، ایران
Abstract [Persian]

ایران دومین کشور بزرگ در خاورمیانه با مناطق اکولوژیکی متنوع می‌باشد. آذربایجان شرقی، از استان‌های شمال غربی ایران، دارای اکوسیستم‌های متنوعی از دریاچه‌ها، رودخانه‌ها، چشمه‌ها، تالاب‌ها و آبشارها است. با این حال، با وجود اکوسیستم‌های رودخانه‌ای متعدد، مطالعات کمی بر روی فلور دیاتومه‌های این منطقه انجام شده است. مطالعه حاضر بر روی فلور دیاتومه رودخانه صوفی چای در آذربایجان شرقی، ایران تمرکز دارد. این رودخانه به طول تقریبی 55 کیلومتر از کوه‌های سهند سرچشمه می‌گیرد و در طول جریان خود در مکان‌های مختلفی تغییرات اساسی یافته و در نهایت از طریق تالاب قره قشلاق به دریاچه ارومیه می‌ریزد. در تحقیق حاضر نمونه جلبکی از هفت ایستگاه بالادست و پایین دست رودخانه صوفی چای در زمستان، بهار، تابستان و پاییز سال 1399 تهیه شد. تهیه نمونه با استفاده از روش پراکسید هیدروژن داغ انجام شد و در نهایت 90 گونه دیاتومه در این مطالعه شناسایی شد. یافته ها نشان داد که بیشترین تنوع گونه‌ای (16 گونه) متعلق به جنس Nitzschia است. همچنین 21 رکورد جدید که قبلاً در فلور دیاتومه ایران گزارش نشده بود شناسایی کردیم.

Keywords [Persian]

  • آذربایجان: ایران: اکولوژی: تنوع: دریاچه ارومیه: دیاتومه: رودخانه صوفی چای

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The Iranian Journal of Botany
Volume 31, Issue 1
June 2025
Pages 128-154

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History

  • Receive Date: 24 May 2024
  • Revise Date: 13 May 2025
  • Accept Date: 03 June 2025

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