Note the intact immature nodules and the ruptured lesions showing white hyphae. Gyrodactylus can be differentiated from Dactylogyrus by the absence of eye-spots. This movie shows Gyrodactylus at 100x magnification. Typical 'flying saucer' motion. Shows typical wet mount at x100 magnification.
White spot has a lazy rolling action.
Note the variance in size of the trophonts. Whitespot is a holotrich ciliate - the cilia are distributed evenly over the entire body surface. A shy, charming little animal that lives in some filters. It is a beneficial organism that lives on smaller protozoa, bacteria, algae and just about anything it can trap with its tentacles.