Bacterial Fish Pathogens: Disease of Farmed and Wild Fish by Brian Austin, Dawn A. Austin

By Brian Austin, Dawn A. Austin

This thoroughly up-to-date 5th variation of Bacterial Fish Pathogens is a complete dialogue of the organic points of the micro organism which reason affliction in farmed and wild fish. because the 4th version was once released in 2007, there was an upturn within the program of molecular methods to taxonomy, prognosis and vaccine improvement. New pathogens, e.g. Aeromonas schubertii, were defined. additionally, there was the emergence of illnesses because of micro organism that have no longer been cultured, and which were equated with new taxa, i.e. ‘Candidatus’. attention is given to all of the bacterial fish pathogens, together with fundamental pathogens and opportunists.

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Salmonicida growing within L-F agar and stained by Dienes method .......................................................................... 125 125 126 126 127 127 128 148 148 150 151 151 151 153 154 156 156 List of Figures Fig. 1 Fig. 2 xxxiii Edw. ictaluri infection in Pangasianodon hypophthalmus. Pale areas of cellular necrosis are evident in the anterior (AK) and posterior (PK) kidney ..................................................... 231 A rainbow trout displaying extensive haemorrhaging in the mouth caused by ERM .........................................................

Characteristics of the Disease The organisms were associated with thickening [hyperplasia] of the air bladder wall, splenomegaly, renal and splenic congestion, and accumulation of mucus exudate (Loch et al. 2008). Isolation Kidney and samples from external and internal lesions were inoculated onto TSA and cresol red thallium acetate sucrose inulin agar, which is selective for carnobacteria, with incubation at 22 °C for up to 72 h (Loch et al. 2008). 5 mm in size arranged in pallisades, which produce arginine dihydrolase and ß-galactosidase but not catalase, H2S or indole, lysine or ornithine decarboxylase, oxidase or phenylalanine deaminase, or reduce nitrates.

Salmonicida subsp. salmonicida, on the surface of a rainbow trout .............................. A dissected furuncle on a rainbow trout revealing liquefaction of the muscle .............................................................. Carp erythrodermatitis. The aetiological agent is likely to be atypical Aer. salmonicida ........................................ Extensive skin and muscle haemorrhaging in black rockfish caused by Aer. salmonicida subsp. masoucida ................ A well developed ulcer on a koi carp.

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