Akademik Veri Yönetim Sistemi
11th INTERNATIONAL ZEUGMA CONFERENCE ON SCIENTIFIC RESEARCH, Gaziantep, Türkiye, 18 - 20 Mart 2024, ss.911-912
Pesticides, which are among organic pollutants, are widely found in aquatic environments and are very
harmful to living things. Insecticides are frequently used in agriculture, urban areas and homes.
Phenothrin is a synthetic pyrethroid used in daily life and agricultural areas for the purpose of combating
pests. During this struggle, it can be applied directly to aquatic areas and threaten the organisms living
there. Mussels, which are filter-fed and have a sedentary lifestyle, can accumulate high concentrations
of pollutants and retain them for a long time. Mussels, which are most exposed to aquatic environmental
pollutants, are considered to be one of the leading biological indicators reflecting pollution in water.
They are important creatures in the food chain. Unio delicatus freshwater mussel, a species that is very
sensitive to pollution, was used in this study. Total hemocyte values were examined in the hemolymph
fluid of Unio delicatus freshwater mussels under the influence of 1-trans phenothrin. Hemolymph is a
plasma consisting of hemocyte cells and contains many chemical substances. The total number of
hemocytes is a physiological parameter and is used as a stress indicator. Mussels obtained from the
Hatay region were placed in the aquarium in a laboratory environment and their adaptation was ensured.
The average lethal concentrations (LC50 value) of 1-trans phenothrin in freshwater mussels were
determined for 96 hours. The doses determined as 814 and 81,4 micrograms/L were applied to
freshwater mussels for 96 hours and 21 days. At the end of the experimental periods, hemolymph fluids
were taken from the mussels. Total hemocyte counts were performed using a light microscope in
hemolymph fluids placed on a thoma slide. Increases and decreases were determined during the
experiment in the effect of 1-trans phenothrin on hemocyte levels of mussels. This study emphasized
that 1-trans phenothrin can change the total hemocyte number value in mussels and affect the immune
system.
Key words: Unio delicatus,1- trans phenothrin, hemocyte