Miscellaneous Pathogens

  • Brian Austin
  • Dawn A. Austin


Pseudoalteromonas piscicida, Pseudoalteromonas undina, Shewanella putrefaciens, Arcobacter cryaerophilus, Halomonas (=Deleya) cupida, Acinetobacter sp., Moraxella sp., Moritella marina, Moritella viscosa, Mycoplasma mobile, Myxococcus piscicola, Aquaspirillum sp., Janthinobacterium lividum, Pasteurella skyensis, Piscirickettsia salmonis, Rickettsia-like organisms, Streptobacillus,Candidatus Arthromitus’, ‘Candidatus Branchiomonas cysticola’, ‘Candidatus Clavochlamydia salmonicola’, ‘Candidatus Piscichlamydia salmonis’ and ‘Candidatus Renichlamydia lutjani’ have been associated with fish diseases. Moritella viscosa has been recovered from winter ulcer disease (= skin lesions) in Atlantic salmon with pathogenicity mechanisms reflecting the presence of extracellular products. Protection has been achieved with an adjuvanted formalin inactivated whole cell vaccine. Piscirickettsia salmonis is an obligate parasite, which has been associated with coho salmon syndrome, Huito disease and salmonid rickettsial septicaemia. Good protection was recorded by use of a formalised whole cell suspension. ‘Candidatus’ are uncultured organisms, which may be visualised in pathological material.


Epitheliocystis Winter ulcer disease Piscirickettsiosis Red egg disease Epizootic ulcerative syndrome 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Brian Austin
    • 1
  • Dawn A. Austin
    • 2
  1. 1.Institute of AquacultureUniversity of StirlingStirlingUK
  2. 2.School of Life SciencesHeriot-Watt UniversityEdinburghUK

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