The dead units were:
A stack of Grens/Knights/Muskets/Cannons that Mackoti Cannoned away; I dropped 3 Cannons of his (across a river, so my cannons got good odds), but that wasn't enough.
Also lost quite a few ships, as to be expected.
Serdoa's 6 Galleons (well, maybe it was 5 of his? I think I added one of my own) were sent to unload their cargo, and die. So I had some fun renaming them:
We who are about to die salute thee!
Actually, if Mackoti starts blockading me left and right, that's really going to suck. My Moai city will be in for a world of hurt if that happens. And I should probably burn my Prophet for a Golden Age, just to get what production I can. That'll likely be next turn, we'll see.