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All Pathogens

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.
Clinostomum (Yel…
Yellow grub compressed under glass.
Ichthyo…
Heavy infestation of Ichthyophthirius.
Echinorhynchus gadi…
Proboscis of Echinorhynchus gadi.
Koi Herpesvirus (KHV…
Gill tissue infected with Koi Herpes Virus
Aeromonas salmonic…
Blue eye - characteristic of Aeromonas infection (Furunculosis).
Trichodina
Trichodina.
Trematodes (fluk…
Stickleback with eyes grossly distended due to trematode metacercariae.
Sanguinicola
Adult sanguinicolid fluke.
Neascus
Neascus metacercaria
Bothriocephalus sp.…
Bothriocephalus sp.
Myxobolus spores from the gallbladder of redside shiner.
Loma
Loma cysts in gill tissue.
Salmincola
Salmincola adults on gills of trout.
Eustrongylides
Eustrongylides nematode visible in side of stickleback.
Trematodes (fluk…
Metacercariae in body cavity of stickleback.
Myxobolus cerebrali…
Rainbow trout infected with M. cerebralis, showing characteristic black tail.
…
Chinook salmon with inflamed kidney due to BKD.
Posthodiplo…
Kidney squash from smallmouth bass showing whitegrub.
Ruptured microsporidian cyst showing individual spores.
Trichophrya
Trichophyra on gills.
Dactylogyrus
Dactylogyrus on gill filaments.
Copepods
Sealice and feeding scars on skin of trout.
Nanophyetus
Nanophyetus metacercarium glowing brightly where it lets light through a thick tissue squash.
Clinostomum (Yel…
Yellow grubs in flesh.
…
Light micrograph of plaque caused by IHN virus.
Bacteria
Flavobacterium (thin filaments) adhering to gill epithelium.
Myxobolus cerebrali…
Pansporocysts of M. cerebralis actinospores developing in gut wall of worm host.
Chilodonella
Chilodonella cilliates.
Capillaria
Adult Capillaria nematode, filled with eggs.
Lepeophtheirus s…
Adult Lepiophtherius on fish skin.
White Sturgeon…
Kidney tissue infected with virus
Gloch…
Larval molluscs (glochidia) on gills of salmon.
Trichodinella
Trichodinella on gills.
Ichthyobodo
Ichthyobodo in Chinook gill section.
Trematodes (fluk…
Trematode metacercaria in gills.
Gyrodactylus
Adult Gyrodactylus.
Microsporidian spores.
EIBS
Stained blood smear showing characteristic EIBS inclusion bodies.
Truttaedacnitis
Adult Truttaedacnitis nematode.
Eustrongylides
Eustrongylides nematode emerging from cut in side of stickleback.
Mycobacterium mari…
Mycobacterial lesion in liver.
Ceratonova shasta
Fish liver showing pale lesions due to C. shasta infection.
Loma
Loma cyst in gill filament.
…
Steelhead trout with bacterial lesions.
Myxobolus squamalis…
Myxobolus squamalis cyst beneath scale.
Echinochasmus
Developing Echinochasmus in gills of Oregon chub.
Trematodes (fluk…
Bluegill with trematode metacercaria (arrowed) in its kidney.
Hemoflagellate
Stained blood smear showing the hemoflagellate Cryptobia salmositica.
Aeromonas salmonic…
Red patches (furunculosis) caused by Aeromonas infection.
Trematodes (fluk…
Trematode metacercariae .

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