%0 Journal Article %T Stochastically perturbed allelopathic phytoplankton model %A Syed Abbas %A Malay Banerjee %J Electronic Journal of Differential Equations %D 2010 %I Texas State University %X In this article we have considered a stochastic delay differential equation model for two species competitive phytoplankton system with allelopathic stimulation. We have extended the deterministic model system to a stochastic delay differential equation model system by incorporating multiplicative white noise terms in the growth equations for both species. We have studied the mean square stability of coexisting state using a suitable Lyapunov functional. Numerical simulation results are provided to validate the analytical findings. %K Stability %K bifurcation %K Lyapunov functional %K stochastic perturbation %U http://ejde.math.txstate.edu/Volumes/2010/98/abstr.html