THE PHYTOPLANKTON COMPOSİTION OF NERGİS STREAM (BALIKESİR) RELATED TO SOME ENVİRONMENTAL FACTORS

Öz

Phytoplankton are very important in determining the water quality of running waters. To study the phytoplankton composition of Nergis Stream related to some environmental factors, the stream was sampled in April 2019 and October 2019 at 2 stations. A total of 48 phytoplankton species, 31 from diatoms, 9 from green algae, 7 from blue-green algae and 1 from Euglenoids were identified. Water temperature fluctuated from 13 to 23°C, dissolved oxygen from 2.9 to 8.30 mgl-1, pH from 5.9 to 8.73, electrical conductance from 1256 to 1467 μScm-1, nitrate-nitrogen (NO3-N) from 0.34 to 0.98 mgl-1, total nitrogen (TN) from 2 to 5.67 mgl-1, ortho phosphate (O-PO4) from 0.04 to 0.09 mgl-1 and total phosphorus (TP) from 0.05 to 0.1 mgl-1. Based on dominant phytoplankton species (Fragilaria capucina, Pinnularia major, Nitzschia palea, Cymbella affinis, Epithemia turgid, Ankistrodesmus falcatus, Scenedesmus quadricauda, Chlamydomonas globosa, Oscillatoria minutissima and Trachelomonas granulata), the stream can be classified as a eutrophic water body.

Anahtar Kelimeler

• Eutrophication
• Nergis Stream
• Phytoplankton
• Water Quality

Nergis Çayı (Balıkesir) Tikoplankton İçeriğinin Bazı Çevresel Etmenlerle Olan İlişkisi

Öz

Akarsuların ekolojik durumunun belirlemesinde fitoplankton önemli bir yer tutar. Nergis Çayı’nın fitoplankton tür kompozisyonu ve bazı çevresel etmenlerle olan ilişkilerini incelemek amacıyla Nisan 2019 ve Ekim 2019 tarihlerinde 2 istasyonda örnekleme gerçekleştirilmiştir. Diyatomlardan 31, yeşil alglerden 9, mavi-yeşil alglerden 7 ve öglenalardan 1 olmak üzere toplamda 48 fitoplankton türü tespit edilmiştir. Su sıcaklığı 13-23°C, çözünmüş oksijen 2.9-8.30 mgl-1, pH 5.9-8.73, elektriksel iletkenlik 1256-1467 μScm-1, nitrat azotu (NO3-N) 0.34-0.98 mgl-1, toplam azot (TN) 2-5.67 mgl-1, orto fosfat (O-PO4) 0.04-0.09 mgl-1 ve toplam fosfor (TP) 0.05-0.1 mgl-1 aralıklarında ölçülmüştür. Baskın fitoplankton türlerine (Fragilaria capucina, Pinnularia major, Nitzschia palea, Cymbella affinis, Epithemia turgid, Ankistrodesmus falcatus, Scenedesmus quadricauda, Chlamydomonas globosa, Oscillatoria minutissima ve Trachelomonas granulata) göre Nergis Çayı ötrofik bir su kütlesidir.

Anahtar Kelimeler

• Fitoplankton
• Nergis Çayı
• Ötrofikasyon
• Su Kalitesi

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