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Phytoplankton (except Bacillariophyceae) flora of lake Gölköy (Bolu)

The phytoplankton composition of Lake Gölköy was studied by monthly sample collection from 3 littoral and 2 pelagic stations during a 2-year period (June 2003-June 2005). In total, 152 taxa belonging to Chlorophyta (61.8%), Euglenophyta (12.5%), Cyanoprokaryota (10.5%), Pyrrophyta (5.3%), Chrysophyta (4.6%), Cryptophyta (3.9%), Xanthophyta (0.7%), and Prasinophyta (0.7%) were identified. | Turk J Bot 31 (2007) 49-65 © TÜB‹TAK Research Article Phytoplankton (except Bacillariophyceae) Flora of Lake Gölköy (Bolu) 1 2 Abuzer ÇELEKL‹ *, Meriç ALBAY , Muzaffer DÜGEL 1 1 Department of Biology, Faculty of Arts and Science, Abant ‹zzet Baysal University, Bolu - TURKEY 2 Faculty of Fisheries, ‹stanbul University, Laleli, ‹stanbul - TURKEY Received: 24.04.2006 Accepted: 15.11.2006 Abstract: The phytoplankton composition of Lake Gölköy was studied by monthly sample collection from 3 littoral and 2 pelagic stations during a 2-year period (June 2003-June 2005). In total, 152 taxa belonging to Chlorophyta (61.8%), Euglenophyta (12.5%), Cyanoprokaryota (10.5%), Pyrrophyta (5.3%), Chrysophyta (4.6%), Cryptophyta (3.9%), Xanthophyta (0.7%), and Prasinophyta (0.7%) were identified. Spirogyra and Scenedesmus were the most abundant genera, with 13 and 10 species, respectively. Some species found in the lake were new records for the Bolu region (e.g., Gonium pectorale Müller, Polytoma cylindraceum Pasher 1927, Provasoliella ovata (Jacobsen) Loeblich, and Anabaena crassa (Lemmermann) Komárková-Legnerová & Cronberg). Key Words: Phytoplankton composition, algal taxonomy, Lake Gölköy, Bolu Gölköy Gölü (Bolu) Fitoplankton (Bacillariophyceae hariç) Floras› Özet: Gölköy Gölü fitoplankton komposizyonu üç k›y›sal ve iki vertikal istasyonda ayl›k olarak iki y›l boyunca (Haziran 2003-Haziran 2005) çal›fl›lm›flt›r. Tan›mlanan toplam 152 taksondan % 61,8’i Chlorophyta, % 12,5’i Euglenophyta, % 10,5’i Cyanoprokaryota, % 5,3’i Pyrrophyta, % 4,6’i Chrysophyta, % 3,9’i Cryptophyta, % 0,7’i Xanthophyta ve % 0,7’i Prasinophyta filumlar›na aittir. Spirogyra ve Scenedesmus s›ras›yla 13 ve 10 tür ile en fazla tür zenginli¤i olan cinslerdir. Gölden bulunan baz› türler (örne¤in, Gonium pectorale Müller, Polytoma cylindraceum Pasher 1927, Provasoliella ovata (Jacobsen) Loeblich ve Anabaena crassa (Lemmermann) Komárková-Legnerová & Cronberg) Bolu bölgesi için yeni rapor .