  We present a spatially resolved stellar population analysis of 61 jellyfish
galaxies and 47 control galaxies observed with ESO/MUSE attempting to
understand the general trends of the stellar populations as a function of the
stripping intensity and mass. This is the public sample from the GASP
programme, with $0.01 < z < 0.15$ and $8.9 <\log(M_{\star}/M_{\odot}) < 12.0$.
We apply the spectral population synthesis code FADO to fit self-consistently
both the stellar and nebular contributions to the spectra of the sources. We
present 2D morphological maps for mean stellar ages, metallicities, gas-phase
oxygen abundances, and star formation rates for the galaxies with Integrated
Nested Laplace Approximation (INLA), which is efficient in reconstructing
spatial data of extended sources. We find that "extreme stripping" and
"stripping" galaxies are typically younger than the other types. Regarding
stellar and nebular metallicities, the "stripping" and "control passive"
galaxies are the most metal-poor. Based on the phase space for jellyfish
cluster members we find trends in ages, metallicities, and abundances with
different regions of the diagram. We also compute radial profiles for the same
quantities. We find that both the stripping and the stellar masses seem to
influence the profiles, and we see differences between various groups and
distinct mass bins. The radial profiles for different mass bins present
relations already shown in the literature for undisturbed galaxies, i.e.,
profiles of ages and metallicities tend to increase with mass. However, beyond
$\sim0.75$ effective radius, the ages of the most massive galaxies become
similar to or lower than the ages of the lower mass ones.
