Rapid change in "surface" algae

[chibae]

I don't have any before pictures but I have been watching my small pond slowly show clearing, in bright light, from a thick, green surface algae. I just went out to check on it and found some totally clear areas with just the multiple small green spots, showing in the picture. Is this a normal clearing change?

 

[GBBUDD]

As a pond matures, plants start to grow and fight for the same nutrients as algae needs to grow , the plants win out.