Zooplankton Fauna (Rotifera, Cladocera, Copepoda) of Süloğlu Dam Lake (Edirne) and its Seasonal Changes

Abstract

This study was carried out between March 2013 and February 2014 in order to determine the zooplankton composition and density in Süloğlu Dam Lake. Zooplankton samples were collected at 4 stations in the lake using a plankton net with a mesh size of 55 µm and fixed in 4 % formalin. The examination of the zooplankton samples revealed a total of 49 species; 11 species from Cladocera, 6 species from Copepoda and 32 species from Rotifera. The quantitative evaluation of the samples showed that the zooplankton density was represented with an annual average of 150,566 ind./m³. Rotifera (59 %) was the dominant group in the dam lake with 89,003 ind./m³ followed by Cladocera (27 %) with 40,628 ind./m³ and Copepoda (14 %) with 20,936 ind./m³. In spatial distribution, maximum density was detected at the 3rd station (285,342 ind./m3 ), whereas minimum density was at the 1st station (36,267 ind./m3 ). The highest individual organism number was detected in spring and the lowest was detected in winter. According to the zooplankton composition and percentage distribution of zooplanktonik groups, Süloğlu Dam Lake was concluded to have an oligo-mesotrofic characteristic.

Keywords

• süloğlu dam lake
• zooplankton
• fauna
• seasonal changes.
• süloğlu baraj gölü
• zooplankton
• fauna
• mevsimsel değişim