New Diatom Records for Turkish Freshwater Algal Flora from Lakes Ladik (Samsun, Turkey) and Hazar (Elazığ, Turkey)

Özet

The majority of phycological studies in Turkey focus on seasonal changes of phytoplankton and phytobenthos in lenticand lotic systems, while very few studies related to counting diatoms in sediment cores obtained as a result ofpaleolimnological work have been published. In this paleolimlogical study, seventeen (14+3) n e w diatom records forfreshwater algal flora of Turkey were determined on sediment core samples at five different locations collected in July2006 from Lakes Ladik (Samsun) and Hazar (Elazığ). We recorded seventeen diatom taxa belonging to Naviculales (8),Cymbellales (2), Eunotiales (2), Bacillariales (2), Fragilariales (1), Tabellariales (1) and Aulacoseirales (1) orders from LakesLadik (Samsun) and Hazar (Elazığ). All of the reported taxa are new records for freshwater algal flora of Turkey. Generalinformation on the morphology and taxonomy of the species are briefly described in this paper, with their illustrations.