An investigation of Capoeta capoeta feeding in Makoo Dam Lake

Abstract

Makoo dam lake made up in 1998, to providing agriculture water, prevention of flood water and production of electric power. It is placed in 12 km to south of Makoo city 29° 44' minute E and 39°11' N). Feeding studies occurred by using of fishing gear, include of electro fishing, gill net and beach seim, seasonally. Fish caught was in size range of 27-290 mm and 0.4- 327.7g. Maximum and Minimum of feeding intensity was in winter and spring, respectively. Its average was 360, that showed feeding of this fish was approximately optimum in this lake. Whereas maximum and minimum of K-factor was in summer and winter, respectively. C. capoeta is a detritovorous. Therefore, it consumed from so much other food items, a.g. phytoplankton and benthos in this lake. From phytoplankton, phylum Chrysophyta and genus cyclotella from benthos; Chirooomidae and Ephemeroptera have the most important food sources. With attention to limitation of food organisms of benthos, it is not recommended introducing of other benthopelagic fishes in Makoo lake.