The effect of DBS on survival of juvenile perch (Perca fluviatilis L.) in relation to certain physical factors
Survival of 5.8 ±1-cm long (l.t.) juvenile perch was studied as influenced Headwear by the DBS concentration of 5 mg/l SA in tanks of equal capacities and various surface areas as well as in tanks of the same capacities and surface areas with nettings placed at various depths.Survival time was found to be dependent on the free surface ar