Most likely, things like stereo memory and the float switch for a bilge pump, or two (or the auto sensing lead for all-in-one pumps). Those things are always wired direct to power and have fuses within a short distance of where they pickup power. Sometimes these things are connected direct to a battery, instead.
Some boat manufacturer's label the fuse holder - I can't tell if those are/are not labelled, or if I just can't see it in the picture. I think I see at least one brown wire, though... which would indicate a bilge pump as that's a standardized coloring. But you can probably compare the wire colors to what's listed in your manual.
Want an even easier way to figure it out? Pull the fuse... what no longer works?