The Biological Indicator Values of Notonecta Viridis Delcourt, 1909 (Hemiptera: Notonectidae) and Some Chironomidae (Diptera) Species in the Van Lake Shore Habitats

Abstract

Biological indicator values of Notonecta viridis Delcourt, 1909 (Hemiptera: Notonectidae), Microchironomus deribae (Freeman, 1957), Halocladius fucicola (Edwards, 1926), Cricotopus spp. and Chironomus sp. (Diptera: Chironomidae), which are commonly detected along the coastline, were used to identify the habitats of the Lake Van shoreline. The studies were carried out between May-October 2011 on the entire Van Lake shoreline. The pH, temperature, salinity, Nitrogen, Ammonium, Copper, Iron, Chlorine, Manganese, Potassium values of the water were measured in the samples as well as larva and nymph densities. Among the species identified in the samples, M. deribae was considered as a new record for the Van Lake. According to the analysis, it was determined that the indicator values of Ammonium, Nitrogen, Copper, Chlorine, Manganese and salinity is important in some sampling stations and it has been determined that species affect population densities. Cricotopus spp was found to be a bioindicator of the Altınsaç habitat, whereas the M. deribae and N. viridis were found as the bioindicator of Yolçatı habitat. © 2018, Centenary University. All rights reserved.