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Non-Maxwellian metaequilibria can exist in low-collisionality plasmas asevidenced by satellite and laboratory measurements. By including the fullpressure tensor dynamics in a fluid plasma model, we show that a shearedvelocity field can provide an effective mechanism that makes an initialisotropic state anisotropic and agyrotropic. We discuss how the propagation ofmagneto-elastic waves can affect the pressure tensor anisotropization and itsspatial filamentation which are due to the action of both the magnetic fieldand flow strain tensor. We support this analysis by a numerical integration ofthe nonlinear equations describing the pressure tensor evolution.

Pressure anisotropy and small spatial scales induced by velocity shear