  At the beginning of 2016, LIGO reported the first-ever direct detection of
gravitational waves. The measured signal was compatible with the merger of two
black holes of about 30 solar masses, releasing about 3 solar masses of energy
in gravitational waves. We consider the possible neutrino emission from a
binary black hole merger relative to the energy released in gravitational waves
and investigate the constraints coming from the non-detection of counterpart
neutrinos, focusing on IceCube and its energy range. The information from
searches for counterpart neutrinos is combined with the diffuse astrophysical
neutrino flux in order to put bounds on neutrino emission from binary black
hole mergers. Prospects for future LIGO observation runs are shown and compared
with model predictions.
