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We present an analysis of the radial profiles of a sample of 43 HI-fluxselected spiral galaxies from the Nearby Galaxies Legacy Survey (NGLS) withresolved James Clerk Maxwell Telescope (JCMT) CO $J=3-2$ and/or Very LargeArray (VLA) HI maps. Comparing the Virgo and non-Virgo populations, we confirmthat the HI disks are truncated in the Virgo sample, even for these relativelyHI-rich galaxies. On the other hand, the H$_{2}$ distribution is enhanced forVirgo galaxies near their centres, resulting in higher H$_{2}$ to HI ratios andsteeper H$_{2}$ and total gas radial profiles. This is likely due to theeffects of moderate ram pressure stripping in the cluster environment, whichwould preferentially remove low density gas in the outskirts while enhancinghigher density gas near the centre. Combined with H$\alpha$ star formation ratedata, we find that the star formation efficiency (SFR/H$_{2}$) is relativelyconstant with radius for both samples, but Virgo galaxies have a $\sim40\%$lower star formation efficiency than non-Virgo galaxies.

The JCMT Nearby Galaxies Legacy Survey -- XI. -- Environmental Variations in the Atomic and Molecular Gas Radial Profiles of Nearby Spiral Galaxies