Mag. 400x
Helical cyanobacteria with crosswalls that are difficult to see, but present (indicated by black arrows where they are distinct). Specie: possibly A. jenneri as seen here https://www.researchgate.net/publication/330579181_Detailed_characterization_of_the_Arthrospira_type_species_separating_commercially_grown_taxa_into_the_new_genus_Limnospira_Cyanobacteria.
A pond edge water sample (freshwater) was taken on 10/1/2021 using a 10 micron dip net to enrich for microorganisms.