Samples from freshwater, surface water.
I'm not an expert by any means. Could it be this?
https://cronodon.com/NatureTech/seaweeds-green.html
I believe 72 and 287 are Desmids (maybe Closterium closterioides), and 109 is a diatom (Navicula spp.). The filament in the top picture (72) looks like a Spirogira sp.
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