New Integral Field Spectroscopy of the central region of NGC 7331 reveals strong H \alpha emission in the well-known CO and HI ring of NGC 7331 .
The [ NII ] /H \alpha ratio indicates that a large scale stellar formation process is taken place at the ring in agreement with previous hypothesis about the exhaustion of gas in the inner to the ring region .
The dynamics of stars and gas are not coupled .
There is a ring of peculiar velocities in the ionized gas velocity map .
These peculiar velocities can be well interpreted by the presence of an axisymmetric inflow of 40 km/s at the inner boundary of the large-scale gaseous ring .
We infer an inwards total flux of 1.6 M _ { \odot } yr ^ { -1 } .
This value is typical of the accretion rates in hypothetical large nuclear black holes .
Despite the large differences in the scales of the nucleus and the gas ring of NGC 7331 , we suggest that this inwards flux is feeding the nucleus .