İnci istiridyesi pinctada radiata (Leach, 1814) için öldürücü klor konsantrasyonları

Abstract

Bu alÝßmada, MayÝs 1999-Nisan 2000 tarihleri arasÝnda, bir fouling organizma olan Ünci Üstiridyesi Pinctada radiata (Leach, 1814) [Avicula] i in ld r c klor konsantrasyonlarÝ ve sudaki kalÝntÝ klor miktarlarÝ araßtÝrÝlmÝßtÝr. alÝßmada, biyodeney eßitlerinden akut toksisite deneyleri yapÝlmÝßtÝr. Deneyler, akar sistemli deney d zeneÛinde, sisteme s rekli ßekilde klor verilerek y r t lm ßt r. Klor zeltilerinin hazÝrlanmasÝnda sodyum hipoklorit (NaOCl - ) kullanÝlmÝßtÝr. alÝßma sonucunda, Pinctada radiata i in, 24 saatlik LC50 deÛeri 1,75 mgl-1 ve LC50 deÛerindeki kalÝntÝ klor miktarÝ ise, 0,47 mgl-1 olarak hesaplanmÝßtÝr.

In this study, the lethal chlorine concentrations (LC) and residual chlorine concentrations in water for a fouling organism, the pearl oyster Pinctada radiata (Leach, 1814) [Avicula], were investigated during May 1999-April 2000. The study was carried out under laboratory conditions at 20¼C. Acute toxicity tests were conducted under a flow through system by using continuous application of chlorine according to bioassay test methods. Test solutions were made by using an appropriate amount of sodium hypochlorite (NaOCl - ). According to the results, the 24h-LC50 was 1.75 mgl-1 and the residual chlorine was 0.47 mgl-1 for LC50 of Pinctada radiata