  The moduli space of solutions to the vortex equations on a Riemann surface
are well known to have a symplectic (in fact K\"{a}hler) structure. We show
this symplectic structure explictly and proceed to show a family of symplectic
(in fact, K\"{a}hler) structures $\Omega_{\Psi_0}$ on the moduli space,
parametrised by $\Psi_0$, a section of a line bundle on the Riemann surface.
Next we show that corresponding to these there is a family of prequantum line
bundles ${\mathcal P}_{\Psi_0} $on the moduli space whose curvature is
proportional to the symplectic forms $\Omega_{\Psi_0}$.
