Algae Bloom at the Hotel Springs

I was out working  at the Springs yesterday (poisoning phragmites and buckthorn resprouts and piling brush) and noticed that a brownish/green algae has bloomed in the Hotel Spring.  It is coating the rocks and sending up fingers of growth to the surface.  It does not have a firm structure and is slimy if you scoop up a handful.  If you know about algae, please help positively identify this algae so we can understand what to expect.

I’ve never seen algae in this spring before, but it may be a normal occurrence.  Here are a couple of resources that I looked at: Brown Algae, DiatomsWikipedia link, but I could not find and pictures that matched what we see above.