Zooplankton Fauna and Seasonal Changes of Constructed Ponds and Reservoirs of Gönen Stream (Balıkesir - Turkey)
Makaleler > Tam Makale · 2017
Yazarlar: M. Ruşen USTAOĞLU, Nilay GÜRLEYEN
Journal of Limnology and Freshwater Fisheries Research, Uluslararası, 2017
DOI: 10.17216/limnofish.292663
Özet
This study aims to determine the zooplanktonic fauna of storage ponds and reservoirs of Gönen stream (Kayatepe Pond, Sameteli Pond, Gönen Dam Lake and Gönen Regulator) and it’s seasonal change. Seasonal zooplankton samples were collected both with horizontal and vertical hauls by a Hydrobios plankton net (55 µm) between September 2010 and June 2011. The plankton samples were immediately fixed in 4% formaldehyde. Among the physico-chemical features of the reservoirs, maximum depth, the water temperature, transparency, pH, dissolved oxygen, oxygen saturation and conductivity analysis were carried out in situ. At the end of qualitative studies, 48 taxa including 25 of Rotifera, 14 of Cladocera and 9 of Copepoda identified totally. All the identified zooplankton taxa are new record for the study area. Quantitative studies indicated that zooplankton abundance of Kayatepe Pond dominated by Rotifera 65.37 % (70412 ind./m 3 ) followed by Cladocera 17.16% (18488 ind./m 3 ) and Copepoda 17.47% (18812 ind./m 3 ); Sameteli Pond dominated by Copepoda 55.15% (153850 ind./m 3 ) followed by Rotifera 22.46% (62660 ind./m 3 ) and Cladocera 22.39% (62438 ind./m 3 ); Gönen Dam Lake dominated by Copepoda 69.60% (70897 ind./m 3 ) followed by Rotifera 20.99% (21375 ind./m 3 ) and Cladocera 9.42% (9599 ind./m 3 ); Gönen Regulator dominated by Rotifera 72.05 % (73411 ind./m 3 ) followed by Copepoda 20.82% (21217 ind./m 3 ) and Cladocera 7.13% (7266 ind./m 3 ). As a result, qualitatively and quantitatively zooplankton analyses indicated mesotrophic-eutrophic character of storage ponds and reservoirs of Gönen stream.