  The ANTARES neutrino telescope has an energy threshold of a few tens of GeV.
This allows to study the phenomenon of atmospheric muon neutrino disappearance
due to neutrino oscillations. In a similar way, constraints on the 3+1 neutrino
model, which foresees the existence of one sterile neutrino, can be inferred.
Using data collected by the ANTARES neutrino telescope from 2007 to 2016, a new
measurement of $\Delta m^2_{32}$ and $\theta_{23}$ has been performed - which
is consistent with world best-fit values - and constraints on the 3+1 neutrino
model have been derived.
