In this study, The Economic Analysis of Trout Enterprises on Yene Stream in Balkaya-KÃÂ±rklareli Region has been investigated. The greatest portion of active capital were ponds (24.90- 39.55 %) and fish (26.77-39.31 %), secondly building (11.27-15.10 %) and tools-machines (8.26-13.60 %). The most gross outcome of per unit pond area was in enterprise A1 (114.47 YTL/m2). Trout production cost has been calculated as the lowest in enterprise A2, the highest in enterprise A3; the highest net profit in enterpriseA2, the lowest in enterprise A1; the highest capital turn ratio in enterprise A2, the lowest in enterprise A3; the highest profitability in enterprise A2, the lowest in enterprise A3. All of the enterprises were small-scale “family-run” establishments, having a capacity between 18-30 tons per year. The total productions of all the enterprises were estimated 73 tons/year. Harvesting density of the ponds in these farms was found to be 21.19 kg/m3. Average survival ratio in these farms was 40%. Feed conversion ratio was computed 1.25.