  Fission plays an important role in the r-process which is responsible not
only for the yields of transuranium isotopes, but may have a strong influence
on the formation of the majority of heavy nuclei due to fission recycling. We
present calculations of beta-delayed and neutron-induced fission rates, taking
into account different fission barriers predictions and mass formulae.
  It is shown that an increase of fission barriers results naturally in a
reduction of fission rates, but that nevertheless fission leads to the
termination of the r-process. Furthermore, it is discussed that the probability
of triple fission could be high for $A>260$ and have an effect on the formation
of the abundances of heavy nuclei. Fission after beta-delayed neutron emission
is discussed as well as different aspects of the influence of fission upon
r-process calculations.
