Aug 6-8, 2017
This sample was taken from a low marshy pond worked by beavers, likely part of a former river channel. The shallows were crowded with water-milfoil and other aquatic plants, providing shelter for many small animals including brook stickleback, giant pond snails, and various insects.
Different green algae, especially filaments and small desmids, were very common. There were also larger greenish to orangish globes of tapering Nostocales, found mainly on plants and often home to Ptygura. Rotifers in general were widespread, notably Lecane and lepadellids, as were vorticellids and especially Strobilidium.
↬ Thanks to zoologist Dr. Nataliia Iakovenko for confirming the identification of Rotaria neptunia and Dissotrocha aculeata and to phycologist Roman Romanov for the identification of Dichotomococcus and Oedogonium.
Pleurostomatida - about 110 µm
Spirotrichea - body about 50 µm
Ciliophora - about 120 µm
Vaginicolidae - case about 60 µm wide
Sessilida - body about 30 µm
Vorticellidae - body about 40 µm
Vorticellidae - body about 60 µm
Vorticellidae - body about 70 µm
Vorticellidae - body about 100 µm