Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Seasional Monitoring of Some Heavy Metals in Astacus leptodactylus

(Eschscholtz, 1823) from the Lake Büyükçekmece
This study, carried out for one year, aimed to investigate as seasonal accumulation of some heavy metals as Cadmium and Lead in water and sediment of the Lake Büyükçekmece; also in muscle tissue of crayfish Astacus leptodactylus inhabiting in the lake.

For this purpose, Lead and Cadmium was monitored seasonally in the Lake Büyükçekmece. Strong acids digestion methods were used to determined heavy metals, ICP-MS for measurement of metal contents in 80 crayfishes and samples from the lake.

As a conclusion; it is determined that metal concentrations were significantly different by seasons (p<0,005). The highest accumulation was found to be for crayfish in spring time waters, for sediment in terms of Pb in autumn, Cd in winter. Accumulations in sediment were higher comparing with crayfish in or around the water. Heavy metal concentrations were determined sediment>muscle>water.

From this study, it is found that values for sediment of the Lake Büyükçekmece are lower than the acceptable levels, according to the Ontario Regulation. In Turkey, according to the standards determined by the government, it is possible to say that the values of Cd in muscle tissues we found in our study, lower than the acceptable limits but the values for Pb we found seems higher than the acceptable limits. Considering the WHO standards, the values of the study seems to be in the intervals for the drinking water.

EROL Deniz

Tez Adı : İskemik Ön Koşullama ve Tempolün İzole Sıçan Kalbinde İskemi/Reperfüzyon Hasarındaki Rolü

Danışman : Prof. Dr. Cihan DEMİRCİ - TANSEL

Anabilim Dalı : Biyoloji

Programı : Zooloji

Mezuniyet Yılı : 2013

Tez Savunma Jürisi : Prof. Dr. Cihan DEMİRCİ-TANSEL

: Prof. Dr. Sönmez UYDEŞ-DOĞAN

: Prof. Dr. Kadriye AKGÜN-DAR

: Prof. Dr. Nazlı ARDA

: Prof. Dr. Berrak YEĞEN