Evaluation of the Trophic Status of Karasu River (Erzincan, Türkiye) by Biodiversity Indices

Year 2023, Volume: 16 Issue: 1, 273 - 285, 31.03.2023

Özden Fakıoğlu , Özge Zencir Tanır , Zeliha Akyüz , Muhammet Furkan Topal

https://doi.org/10.18185/erzifbed.1154847

Abstract

Bu çalışma, Karasu Nehri'ndeki fitoplankton kompozisyonunun ve biyolojik çeşitliliğinin mevsimsel ve zamansal değişimlerine odaklanmıştır. Fitoplankton ve su örnekleri Ocak 2019-Temmuz 2019 döneminde iki ayda bir 0,5-8 m derinlikten beş istasyondan toplanmıştır. Dört çeşitlilik indeksi (Shannon-Wiener, Simpson, Margalef ve Menhinick) incelenmiştir. Endeksler arasındaki ilişkiyi yorumlamak için MINITAB 15 yazılımı kullanılmıştır. Ortalama su sıcaklığı, çözünmüş oksijen, pH ve iletkenlik değerleri sırasıyla 19,43 °C, 7,9 mg/l, 8,3 ve 465 mS/cm olarak ölçülmüştür. Bu çalışmada toplam 123 fitoplankton türü tespit edilmiştir. Bu türlerden Bacillariophyta grubuna ait 106 tür, Chlorophyta grubuna ait 10 tür, Cyanobacteri grubuna ait 6 tür ve Euglenophyta grubuna ait 1 tür teşhis edilmiştir. Çalışma boyunca Shannon-Wiener, Simpson Margalef ve Menhinick çeşitlilik indeksleri sırasıyla 1,89 H´, 11,53, 5,12, 0,83 ve 1,44 olarak hesaplanmıştır. Bu çalışma sonucunda fitoplankton çeşitlilik indeks değerleri ile Karasu Nehri’nin su kalitesine bağlı ekolojik durum değerlendirilmesi bir biri ile uyumlu olmadığı tespit edilmiştir. Ancak farklı şehirler için referans koşulların geliştrilmesi endekslerin kullanılabilirliğini artırabilir. Bu nedenle bu çalışmaların devam etmesini ve yaygınlaşmasını öneriyoruz.

Keywords

Shannon-Wiener, biodiversity indices, phytoplankton, Karasu River, Shannon-Wiener, biodiversity indices, phytoplankton, Karasu River

Supporting Institution

This study was supported by the Erzincan Binali Yıldırım University Scientific Research Projects Coordination Unit

Project Number

Project No. FBA-2019-634

Thanks

We would like to thank Erzincan Binali Yıldırım University, Scientific Research Projects Unit for their financial support

Evaluation of the Trophic Status of Karasu River (Erzincan, Türkiye) by Biodiversity Indices

Abstract

Project Number

Project No. FBA-2019-634

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