The estima of the carrying capacity of a Kılıçkaya Dam Lake for the intensive rainbow trout culture in cage

The most important factors related to the sustainability of fish farming in network cages; water quality parameters that make up the ecological conditions of the environment and environmental transport capacity. In this study, some water quality parameters of Kılıçkaya Dam Lake were monitored for two years and some evaluations were made on trout farming and lifting capacity in the lake considering the results obtained. The research area is located within the borders of Sivas province and the most important water source of Susehri is located on the 320 km long Kelkit Stream, one of the branches of Yesilirmak. The aim of this thesis is to estimate the carrying capacity of Kılıçkaya Dam Lake for trout farming (Onchorhynchus mykiss) in cages by using phosphorus loading model. As a result; acceptable phosphorus load 24 mg / m3 , feed utilization ratio1.0- 1. 5-2. 0 between the accepted and other sources without taking into account the contribution of phosphorus, the average depth of 16 m and the surface area of 64.4 km2 Kılıçkaya Dam Lake can be cultivated in the cages trout amount approximately 2500 thousand tons / year. 2019, 55 PAGE KEYWORDS: Kılıçkaya Dam Lake, trout, phosphorus, phosphorus loading model, carrying capacity, aquaculture.