From the summary of Luftwaffe losses (1./196, Stab, I. and II./JG 54, III./SG 3):
18 Nov 1944: no loss in air combat reported
I/JG 54:
one aircraft destroyed on the ground by enemy bombs
four damaged on the ground by enemy bombs
one damaged on the ground by enemy gunfire from ground forces
II/JG 54:
one aircraft destroyed without enemy action on operational flight
III/SG 3:
one aircraft damaged without enemy action on operational flight
19 Nov 1944: no loss in air combat reported, one to AA
I/JG 54:
one aircraft damaged without enemy action on operational flight
two damaged without enemy action on non-operational flight
one damaged on the ground by enemy gunfire from ground forces
III/SG 3:
one aircraft destroyed by anti-aircraft artillery during operational flight
two damaged without enemy action on operational flight
20-21 Nov 1944: no loss reported
22 Nov 1944: one possible loss in air combat
I/JG 54:
one aircraft damaged without enemy action on non-operational flight
II/JG 54:
one aircraft destroyed without enemy action on operational flight
III/SG 3:
one aircraft missing due to enemy action
23 Nov 1944: one loss in air combat (but not a Fw 190)
1./196:
one aircraft destroyed by gunfire from enemy aircraft during operational flight, observed by enemy
I./JG 54:
two aircraft damaged without enemy action on non-operational flight
You can find more details (loss hour, crew names and fate) about the Ar 196 shot down on 23 Nov 1944 there:
http://www.historisches-marinearchiv...ere_value=1185
Sadly the above source has nothing about the floatplanes losses of the 17 AFAIK.
Best regards