The epiphytic algae were studied on three aquatic plants (Ceratophyllum demersum, Myriophyllum verticillatum and Potamogeton pectinatus) from seven stations in Euphrates River between Hindia barrage Al-Kufa city-Iraq, during summer 2004 spring 2005. A total of (97) species identified, diatoms dominant their number (73% the number), followed by chlorophyta, then cyanophyta Euglenophyta. Variatio...

The cyanobacteria are well recognized as producers of a wide array of bioactive metabolites including toxins, and potential drug candidates. However, a limited number of taxa are generally considered with respect to both of these aspects. That said, the order Stigonematales, although largely overlooked in this regard, has become increasingly recognized as a source of bioactive metabolites relev...

Filamentous epipelic cyanobacteria were isolated from ponds and lakes in the Czech Republic, Austria and Italy. Morphological and genetic variation of 20 isolated strains within the genera Geitlerinema, Microcoleus and Phormidium were studied. Partial sequences of the 16S rRNA gene were used for phylogenetic analyses, and secondary structure of the 16S–23S ITS region was used to additionally de...

This study assesses spatial and temporal variation in environmental variables in relation to phytoplankton community size and composition in a typically eutrophic river reservoir (Hai River, northern China). The aim is to identify environmental parameters governing spatial and temporal differences in phytoplankton density and composition. Physicochemical parameters, including nutrient concentra...

Jeolojik bakımdan tektonik bir yapıya sahip olan Tuz Gölü Özel Çevre Koruma Bölgesi, Ramsar ölçütlerine göre biyolojik çeşitliliğin korunması açısından büyük önem taşıyan “A Sınıfı” sulak alandır ve uluslararası ölçütlere korunmaktadır. Büyük sahayı kaplamasına karşın Türkiye’nin en sığ göllerine yıllık ortalama 324 mm/m2 yağış miktarı ile ülkenin kurak coğrafyasında yer almaktadır. Çalışmada b...