Different regimes of density convective motions in a rotating fluid from an
isolated buoyancy source are considered. It is shown that, along with geos
trophic regimes of convection, the regimes of an inclined rotating turbulen
t jet and the regime of an anticyclonic rotating cylindrical vortex exist i
n water. Different approximations that are used to describe convective moti
ons in a rotating fluid in both quasi-geostrophic and other regimes are cla
ssified.