The results of the theory of ion acoustic turbulence for a plasma with seve
ral ion species are given, It is found that charged dust particles and heav
y ions diminish the electron scattering by turbulent fluctuations in multi-
species plasmas. Due to this diminishing the anomalous transport amplificat
ion takes place. (C) 1999 Published by Elsevier Science B.V. All rights res
erved.