The individual growth of carp (Cyprinus carpio f. domestica) in two different water reservoirs in drainage area of Morava (CR) the first year after stocking

Abstract

The growth rate of tagged carps has been studied in two different man-made lakes, namely a shallow reservoir Novomlýnská and the deep reservoir Dalešická over one year after stocking of the two-year-old stockfish. Ten thousands of tagged individuals were released into the Novomlýnská reservoir while 4000 ones into the Dalešická reservoir. The body mass of carps found after one year rearing in the Novomlýnská reservoir (TL=46.4 cm, w=2.26 kg) was twice greater than obtained in the Dalešická reservoir (TL=37.0 cm, w=1.08 kg). Significant differences were stated in all followed parameters. The growth rate registered in the carp from Novomlýnská reservoir resembles that existing normally in pond culture whereas growth rate of carps stocked into the Dalešická reservoir was similar as in carps from running waters