  We compute the entanglement entropy of Hawking radiation in a bath attached
to a deformed eternal AdS black hole dual to field theories where each theory
is backreacted by the presence of a uniform static distribution of heavy
fundamental quarks. The entanglement entropy of the Hawking radiation increases
linearly with time until an island emerges after the Page time, at that point
the entanglement entropy saturates to a constant value twice the
Bekenstein-Hawking entropy of the deformed black hole resulting in the Page
curve. Furthermore, we study the effects of the backreaction on the Page curve
and observe that introducing deformation delays the appearance of island and
shifts the Page curve to a later time.
