tailieunhanh - Diversity and ecology of diatoms from Felent creek (Sakarya river basin), Turkey

In the present study, 41 samples of epilithic diatoms were collected from 5 stations along Felent creek between June 2006 and February 2007 and a total of 117 diatom taxa were identified. The bio-indication (autoecology and abundance scores in the communities) of Felent creek was investigated and, as a result, the organic pollution indicators of Watanabe’s classification (81 species, ) constituted 3 groups. | C. N. SOLAK, S. BARINOVA, É. ÁCS, H. DAYIOĞLU Research Article Turk J Bot 36 (2012) 191-203 © TÜBİTAK doi: Diversity and ecology of diatoms from Felent creek (Sakarya river basin), Turkey Cüneyd Nadir SOLAK1*, Sophia BARINOVA2, Éva ÁCS3, Hayri DAYIOĞLU1 1 Department of Biology, Arts and Science Faculty, Dumlupınar University, 43100 Kütahya - TURKEY 2 The Laboratory of Biodiversity and Ecology, the Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905 - ISRAEL 3 Danube Research Institute of Hungarian Academy of Sciience, 2131 Göd, Jávorka S. u. 14 - HUNGARY Received: Accepted: Abstract: Diatoms are an important group of aquatic ecosystems. To date, there have been many important algological studies in different river basins in Turkey. However, the use of diatoms in biomonitoring (according to diatom indices, Watanabe’s or Van Dam’s systems) is relatively new in Turkey. In the present study, 41 samples of epilithic diatoms were collected from 5 stations along Felent creek between June 2006 and February 2007 and a total of 117 diatom taxa were identified. The bio-indication (autoecology and abundance scores in the communities) of Felent creek was investigated and, as a result, the organic pollution indicators of Watanabe’s classification (81 species, ) constituted 3 groups. The Sládečék’s index calculated for each sampling station varied from to (from oligo- to betamesosaprobic) at stations, and the river pollution index was calculated for each defined environmental variable as well as for species richness and index of saprobity over stations in summer and winter. The river water was alkaline and temperate with low salinity, and there was organic pollution in summer. Species richness was mostly higher in winter than in summer. Key words: Biomonitoring, diatom, ecological indices, Felent creek, saprobity Felent çayı (Sakarya nehir havzası) diyatomelerinin çeşitliliği ve ekolojisi Özet: