Behavioral Differentiation Induced by Insecticide Lambda-Cyhalothrin in Mosquito Fish, Gambusia affinis

Abstract

Test toxic material, one of most used pesticide, the Lambda cyhalothrin (LCY) (TEKVANDO 5EC) belongs to a group of chemicals called synthetic pyrethroids and pesticides and potential toxic pollutant contaminating aquatic ecosystems, was investigated in the present study for behavioral toxicology. Mosquito fish, Gambusia affinis (Baird & Girard, 1853) were selected for responses of Lambda cyhalothrin by Using to video-based movement analysis system. Selected 3 different doses 0.1, 0.5 and 0.75 ppm were used analyzed behavioral changes according to control group. The following behaviors were measured: total distance, travelled and average speed for treatment and control groups, maximum and average speed and time moving away from the dose applied point. This suggests that LCY contamination has the potential to significantly affect (p<0.05) the behavior of Mosquito fish, G. affinis.

Keywords

• Gambusia affinis; behavioral toxicology; lambda cyhalothrin; toxic effect

Insektisit Lambda Cyhalothrin Maruz Bırakılan Sivrisinek Balığı Gambusia affinis’te Davranış Değişimi

Öz

İnsektisitler, sucul ekosistemde insan kaynaklı toksik kirleticilerin başında gelmektedir. Bu çalışmada, bir isektisit olan lambda-cyhalothrin (LCY) 'in farklı dozlarının sivrisinek balığında toksik etkiye bağlı davranışsal etkileri aştırılmıştır. Sentetik piretroidler ve böcek ilaçları ve potansiyel toksik kirletici olarak sucul ekosistemlerin kirlenmesine neden başlıca kirleticiler arasındadır. Sivrisinek balığı, Gambusia affinis (Baird & Girard, 1853) video tabanlı hareket analizi sistemi kullanarak söz konusu pestisite verilen cevaplar ortaya çıkarılması için kullanmıştır. Seçilen 3 farklı doz 0,1, 0,5 ve 0,75 ppm ve kontrol grubuna göre yapılana analizler davranış değişikliklerin belirlenmesinde kullanılmıştır. Çalışmada araştırılan davranış parametreleri; toplam mesafe, hareket mesafesi ve ortalama hız, uygulanan noktaya göre hareket miktarı hem uygulama hem de kontrol grupları için, maksimum ve ortalama hız ve süredir. Bu çalışma, LCY’nin sivrisinek balığı, G. affinis davranışlarını önemli ölçüde etkileme potansiyeline (p<0,05) sahip olduğunu göstermektedir.

Anahtar Kelimeler

• Gambusia affinis; davranışsal toksikoloji; lambda cyhalothrin; toksik etki

Kaynakça

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