November 3, 2018
This summer and fall have seen far too much rain to produce much in the way of colorful Leptothrix discophora films. But I miss them, so this post delves into photographs I took of this evidence of iron bacteria along Ohio’s Vermilion River between 2008 and 2010, before I’d started the blog. Some of these photos may be repeats of other dives into the archives. I hope that since I can’t remember if I’ve shown them, you can’t either.
August 8, 2018
The second photograph is a long view of the area that featured the Leptothrix discophora films July 14.
August 7, 2018
August 6, 2018
When the water level recedes, it leaves traces of the Leptothrix discophora film on the rocks and mud. The close crop shows the iridescence best. Click on it to see the image even bigger. (The paw prints are from a raccoon.)
August 5, 2018
August 3, 2018
The detail crops show more of what drew my eye. The puckering indicates loss of water from the film.
August 2, 2018
August 1, 2018
July 30, 2018
As promised, here come the photos of the Leptothrix discophora biofilms I saw along the Vermilion River July 14. Those of you new to this blog may find a brief introduction to what you see in this photograph useful. Those wanting to know more may care to explore some links.