The Effects of Certain Physical and Chemical Variables on the Succession of the Phytoplankton in the Shallow Cagis Pond (Balikesir, Turkey)

Abstract

The effects of certain physical and chemical variables on the phytoplankton succession in the shallow Cagis Pond (Balikesir, Turkey) were investigated between August 2006 and July 2008. Samples were taken monthly from one sampling station. A total of 93 taxa belonging to 7 divisions were identified, including Chlorophyta (39 taxa), Heterokontophyta (30 taxa), Cyanobacteria (17 taxa), Euglenophyta (2 taxa), Dinophyta (2 taxa), Charophyta (2 taxa) and Cryptophyta (1 taxa). Cyclotella meneghiniana, Microcystis aeruginosa, Microcystis protocystis, Arthrospira platensis, and Micractinium pusillum dominated the phytoplankton at least for one season. A Canonical Correspondence Analysis (CCA) showed that water temperature, transparency, conductivity, and total dissolved solids had significant effects on the distribution and abundance of the dominant phytoplankton taxa. Sig bir golette (Cagis Goleti, Balikesir, Turkiye), fitoplanktonun tur kompozisyonu ve yogunlugu uzerine bazi temel fiziksel ve kimyasal parametrelerin etkisini belirlemek amaciyla Agustos-2006 ile Temmuz-2008 tarihleri arasinda ornekleme yapilmistir. Calisma suresi boyunca Chlorophyta'ya ait 39, Heterokontophyta'ya ait 30, Cyanobacteria'ya ait 17, Dinophyta'ya ait 2, Euglenophyta'ya ait 2, Charophyta'ya ait 2 ve Cryptophyta'ya ait 1 olmak uzere toplam 93 takson tespit edilmistir. Cyclotella meneghiniana, Microcystis aeruginosa, Microcystis protocystis, Arthrospira platensis ve Micractinium pusillum hucre yogunlugu yonunden fitoplanktonda onemli olmuslardir. Kanonik Uyum Analizi (CCA) baskin turlerin dagilimini ve yogunlugunu etkileyen en onemli parametrelerin su sicakligi, suyun isik gecirgenligi, elektriksel iletkenlik ve toplam cozunmus madde oldugunu gostermistir. Anahtar Kelimeler: Fitoplankton, Fiziksel ve Kimyasal Parametreler, Golet, Hucre yogunlugu, Kanonik Uyum Analizi (CCA)