Acute Toxicity of Some Agriculture Fertilizers to Rainbow Trout

作者：Capkin Erol^*; Kayis Sevki; Boran Halis; Altinok Ilhan

来源：Turkish Journal of Fisheries and Aquatic Sciences, 2010, 10(1): 19-25.

DOI：10.4194/trjfas.2010.0103

• fertilizer
• NPK
• acute toxicity
• rainbow trout

The acute toxicity of ammonium sulphate, calcium ammonium nitrate and two different composite fertilizers [15:15:15 (NPK-1) and 25:5:10 (NPK-2)] to juvenile rainbow trout (Oncorhynchus mykiss; 0.89 +/- 0.22 g) was evaluated under semi-static conditions. The concentrations of ammonium sulphate, calcium ammonium nitrate, NPK-1 and NPK-2 that killed 50% of the rainbow trout within 96-h (96-h LC(50)) were 0.149, 0.259, 0.258 and 0.408 g/L, respectively. The mortality of fish was elevated with increasing concentrations of the fertilizers. The time required to kill 50% (LT(50)) of the rainbow trout at the highest concentrations tested was 11 h 18 min for ammonium sulphate, 12 h 23 min for calcium ammonium nitrate, 13 h 38 min for NPK-1 and 17 h 47 min for NPK-2. Ammonium sulphate was the most toxic compound to rainbow trout compared to composite fertilizers.

• 出版日期2010-3