Identification Tools
The following are pathogens that threaten Nebraska’s native species.
Click any photo below to learn more about these pathogens and what you can do to help.
Established
![Chytrid Fungus](species/photos/thumbs/chytrid-fungus.jpg)
Chytrid Fungus
Batrachochytrium dendrobatidis
A fungus that infects amphibians in their keratin containing skin layers.
Potential
![Heterosporosis](species/photos/thumbs/heterosporosis.jpg)
Heterosporosis
A parasite that infects and degrades muscle tissue of yellow perch and other fish species. It creates thick sporophorocysts, in which spores develop.
Potential
![Largemouth Bass Virus](species/photos/thumbs/LBV-home.jpg)
Largemouth Bass Virus
Most bass with LBV will appear completely normal. In some cases, dying fish will be near the surface and have trouble swimming.
Potential
![Thousand Cankers Disease of Walnut Trees](species/photos/thumbs/Thousand-kankers-bark.jpg)
Thousand Cankers Disease of Walnut Trees
Geosmithia morbida
Fungus kills localized areas, causing branch dieback.
Potential
![Viral Hemorrhagic Septicemia (VHS)](species/photos/thumbs/VHS-home.jpg)
Viral Hemorrhagic Septicemia (VHS)
Novirhabdovirus sp.
Fish will show widespread hemorrhages (bleeding) throughout the body
Potential
![Whirling Disease](species/photos/thumbs/whirling-1.jpg)
Whirling Disease
Myxobolus cerebralis
This parasite prevents the fish from foraging for food and evading predators, resulting in death.