I saw a giant algae bloom in the Tampa Bay estuary a few weeks ago. I was driving across it, and I saw what looked like a big film of rust moving across the water.
I live in the area, and I had read that the bloom might be arriving in the estuary soon. It was caused by the excessive heat we’ve had this summer, combined with runoff from fertilized lawns.
This algae bloom could harm the fish in the estuary. The algae use a lot of the available oxygen, so the fish become deprived. I know a few years ago, a big bloom killed everything from crabs to catfish.