Assuming you saw my other (now deleted) post where I asked you to post videos/scenes/etc....yea sorry, I missed what you posted in the OP 
I haven't worked with Phoenix ocean meshes. Does their topology change? Even if it does, you can get around that by using tyConform....create a plane with the segments of your choosing above the ocean mesh, put a tyConform on it, raycasting downwards (0,0,-1), and then use that as your particle distribution object.
I haven't worked with Phoenix ocean meshes. Does their topology change? Even if it does, you can get around that by using tyConform....create a plane with the segments of your choosing above the ocean mesh, put a tyConform on it, raycasting downwards (0,0,-1), and then use that as your particle distribution object.