Ulcer disease


Epidermal hyperplasia
Excessive growth on skin.
Ulcers - irregular
Irregular shaped ulcers are evident on the skin.
Ulcers - in mouth
The mouth area shows one or more obvious ulcers.
Haemorrhages - skin
Bloody haemorrhages are apparent over several parts of the skin.
Knotlike white pimples - skin
Skin shows a number of knotlike white raised pimples.
Scales protruding
The scales are raised outwardly protruding.
Raised blister
Blister-like nodules appear above the skin.
Shallow white rimmed ulcers
The skin shows one or more shallow, and white rimmed, ulcers.


Bacteria originaly  identified in 1950 by Snyeszko as Haemophilus piscium, later relabeled as atypical Aeromonas salmonicida. A later DNA comparison showed 99.8% similarity against  Aeromonas bestiarum. Typically infects Trout. This bacteria is very similar in symptoms to aeromonas spp. and pseudomonas spp.

See scientific  paper on distinguishing between A.salmonicida & A. bestiarum. 


Unchecked can cause many losses, treated early good outlook can be expected.


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DNA and RNA diagnostic references 

Phenotypic, genotypic and phylogenetic discrepncies to differentiate 
Aeromonas salmonicida from Aeromonas bestiarum. 

From  Int Microbiol.  2005Dec ; 8 (4) : 259-69.

Martinez-Murcia AJ, Molecular Diagnostics Center, Alicante, Spain.


There are 7 disease pictures available. Please log in to see them.

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