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Net diatom (Bacillariophyceae) flora of lake Gölköy (Bolu)

he diatom flora of Lake Gölköy was studied monthly over 2 years (June 2003-June 2005) from 3 littoral and 2 vertical stations in Lake Gölköy (Bolu, Turkey). A total of 119 diatom taxa were identified, most of them belonging to Naviculaceae (48.7%) Kützing, Fragilariceae (16.8%) Hustedt, Surirellaceae (11.8%) Kützing, and Bacillariaceae (6.7%) Ehrenberg, from which many species (Asterionella formosa Hassall, Aulacoseria granulata (Ehrenberg). | Turk J Bot 30 (2006) 359-374 © TÜB‹TAK Research Article Net Diatom (Bacillariophyceae) Flora of Lake Gölköy (Bolu) Abuzer ÇELEKL‹ Department of Biology, Faculty of Arts and Science, Abant ‹zzet Baysal University, Gölköy 14280 Bolu - TURKEY E-mail: celekli_a@ibu.edu.tr Received: 12.12.2005 Accepted: 11.04.2006 Abstract: The diatom flora of Lake Gölköy was studied monthly over 2 years (June 2003-June 2005) from 3 littoral and 2 vertical stations in Lake Gölköy (Bolu, Turkey). A total of 119 diatom taxa were identified, most of them belonging to Naviculaceae (48.7%) Kützing, Fragilariceae (16.8%) Hustedt, Surirellaceae (11.8%) Kützing, and Bacillariaceae (6.7%) Ehrenberg, from which many species (Asterionella formosa Hassall, Aulacoseria granulata (Ehrenberg) Simonsen, Cyclotella praetermis Lund, Cymbella cistula Kirchner, Fragilaria biceps (Kützing) Lange-Bertalot, F. crotonensis Kitton, F. dilata (Brebisson) Lange-Bertalot, Navicula radiosa Kützing, and Nitzschia sigmoidae (Nitzsch) Smith) were found each month at all stations. Species richness was especially high in the autumn (November-December 2003 and September-October 2004) during the study periods. Key Words: Lake Gölköy, Diatom, Systematic, Species diversity Gölköy Gölü Net Diyatome (Bacillariophyceae) Floras› Özet: Gölköy Gölü diyatome floras› üç k›y›sal ve iki vertikal istasyonda ayl›k olarak iki y›l boyunca (Haziran 2003-Haziran 2005) çal›fl›lm›flt›r. Naviculaceae (%48,7) Kützing, Fragilariceae (%16,8) Hustedt, Surirellaceae (%11,8) Kützing, ve Bacillariaceae (%6,7) s›n›flar›na ait toplam 119 diyatomenin tan›mland›¤› yerde birçok tür (Asterionella formosa Hassall, Aulacoseria granulata (Ehrenberg) Simonsen, Cyclotella praetermis Lund, Cymbella cistula Kirchner, Fragilaria biceps (Kützing) Lange-Bertalot, F. crotonensis Kitton, F. dilata (Brebisson) Lange-Bertalot, Navicula radiosa Kützing, ve Nitzschia sigmoidae (Nitzsch) Smith) bütün istasyonlardan her ay bütün istasyonlarda bulunmufltur. Çal›flma .