Effect of depuration on content geosmin in pikeperch (Sander lucioperca) produced a commercial RAS farm was examined during 15-day period. Concentrations the fish were related to water. For depuration, half water volume 230 m3 production tank replaced daily with geosmin-free After 8 days and absence feeding, reduced from 710 ± 245 ng/kg 165 50 (mean SD, p < .01). Additional for 7 only 135 24 ng...

This article provides information on the growth of pike perch ( Sander lucioperca ) Lake Tuzkon, which is part Aydar-Arnasay system lakes. As a result research carried out, age composition catches was determined: at 1+ - 16.5%; 2+ 38.5%; 3+ 17.5%; 4+ 12%; 5+ 7.6% and 6+ 8.0%. It determined that in first year life grows to an average 26.40 cm, second up 44.45 third 53.35 fourth 67.37 fifth sixth...