Freshwater dinoflagellates

[Bernd]

In response to Rene´s question in Charles Krebs´s thread "A few "unknowns". Suggestions?" below http://www.photomacrography.net/forum/v ... hp?t=19649 here are in a separate thread some pictures of a freshwater dinoflagellate sampled last spring, showing the vegetative dinoflagellate (a), specimen in different stages of cell division (b), cysts (c) and cell division inside of a cyst (d). I presume the genus is Gymnodinium, but I do not know which species.

Bernd

[Charles Krebs]

Bernd,

Thanks for posting these. Excellent job on the surface grooves and flagella in the first two... I've rarely ever seen them as clearly.

Still not sure what I had found. I added a few more images to that post that might offer a little more information.