1. Whirling Disease
Myxobolus cerebralis

2. The Facts Parasitic disease Only affects fish of the Salmonidae family
Does not infect humans or mammals
No cure or vaccine
Does not always cause harm
Occurs in hatcheries and in the wild
Juvenile fish most affected

3. Fish Affected

5. How the Fish is Infected
Triactinomyxon penentrates the gill epithelial cells.
Replicates itself
Cells burst releasing infection deeper into the dermis subcutics layers.
Moves to the spinal cord, brain, and carlitage of skelton

6. Affects on the Trout
Black Tail

7. Deformities of Skeletal Structure

8. Whirling Uncontrollably
Enables feeding
More acceptable to predators

9. History of Whirling Disease
Native to Europe
First in Germany -1903
Also found in Africa and New Zealand
1956- Pennsylvania
states
states
Colorado and Montana most affected
- 14 out of 15 drainages in Colorado infected
- 500 miles of streams show partial or complete loss of wild rainbow trout

11. How to Prevent the Spread Whirling Disease
Hatcheries use ultraviolet light to kill parasite.
Do not transport fish from one body of water to another.
Do not dispose of fish entrails into any body of water or into sinks.
Drain boats, coolers, live bait wells.
Wash mud from vehicles, boats, trailers, waders, boots and any other equipment that comes in contact with mud.
Never transport aquatic plants, and clear all equipment of weeds.

12. Sources http://whirlingdisease.montana.edu/default.asp