Investigation and monitoring of tetracycline and degradation products in waters of trout farm

In this study, tetracycline and degradation products were determined in the basins of a trout farm and in the stream carrying the waters of trout farm. Tetracycline (TC), 4-epitetracycline (ETC), 4-epianhydrotetracycline (EATC) and anhydrotetracycline (ATC) concentrations were determined under the detection limit in upstream of trout farm. The highest and lowest tetracycline concentrations detected in trout farm are 7.64 +/- 0.38 ppb and under detection limit, respectively. The highest and lowest 4-epitetracycline concentrations were 16.2 +/- 0.8 and 1.85 +/- 0.09 ppb, respectively while the highest and lowest 4-epianhydrotetracycline concentrations detected in trout farm were 25.8 +/- 1.3 and 6.12 +/- 0.30 ppb, respectively. The highest and lowest anhydrotetracycline concentrations detected in trout farm were 18.5 +/- 0.9 and 6.24 +/- 0.31 ppb, respectively. Mean tetracycline, 4-epitetracycline, 4-epianhydrotetracycline and anhydrotetracycline concentrations were 3.52 +/- 0.17; 5.30 +/- 0.26; 14.4 +/- 0.7 and 9.64 +/- 0.48 ppb in downstream of trout farm. When upstream and downstream were compared in terms of tetracycline and degradation products it could be said that Keban stream was affected as a result of activity of trout farm.