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Fish Pathogens

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These are all of the pathogen images in our database.
Click a pathogen name to jump to the pathogen info page. Click an image to enlarge it, then use the left and right arrows to browse.

Lernaea (anchor worm)
Salvelinema walkeri
Adult Salvelinema nematodes in muscle of host.
Ceratonova shasta
Juvenile rainbow trout with swollen belly.
Bacteria
Flavobacterium (thin filaments) adhering to gill epithelium.
Copepods
Sealice and feeding scars on skin of trout.
Vibrio
Blue eye - characteristic of bacterial infection.
Renibacterium salmoninarum (b...
Fish kidney showing white lesions caused by renibacterium.
Posthodiplostomum (White Grub...
Bluegill with heavy infection of white grub in its liver.
Posthodiplostomum (White Grub...
Posthodiplostomum minimum adult.
Loma
Loma cysts in gill tissue.
Trematodes (flukes & grub...
Stickleback with eyes grossly distended due to trematode metacercariae.
Trematodes (flukes & grub...
Trematode metacercaria from skin of coho salmon.
Ichthyophonus
Ichthyophonus growing in dead host tissue.
Fungi and fungus-like pathoge...
Fungal lesion on largescale sucker
Clinostomum (Yellow Grub)
Two Clinostomum metacercariae after emerging from their fish host.
Echinochasmus
Trematode metacercaria in gills.
Posthodiplostomum (White Grub...
High magnification view of liver squash showing heavy infestation of white grub.
non-pathogen injury or other...
Dactylogyrus
Adult dactylogyrus showing its 4 eyespots.
Dermocystidium
Dermocystidium in gills
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