By Brian Austin, Dawn A. Austin
This thoroughly up to date 5th variation of Bacterial Fish Pathogens is a entire dialogue of the organic points of the micro organism which reason illness in farmed and wild fish. because the 4th variation was once released in 2007, there was an upturn within the software of molecular ways to taxonomy, analysis and vaccine improvement. New pathogens, e.g. Aeromonas schubertii, were defined. additionally, there was the emergence of illnesses as a result of micro organism that have no longer been cultured, and which were equated with new taxa, i.e. ‘Candidatus’. attention is given to the entire bacterial fish pathogens, together with fundamental pathogens and opportunists.
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Extra info for Bacterial Fish Pathogens: Disease of Farmed and Wild Fish
30 2 Gram-Positive Bacteria (Anaerobes and ‘Lactic Acid’ Bacteria) Epizootiology Figueiredo et al. (2012) considered that transmission occurred through water. m. p. injection and immersion (Figueiredo et al. 2012). Gram-Positive Cocci in Chains – the Early Literature General Comments Streptococcicosis (= streptococcosis) was initially described among populations of rainbow trout farmed in Japan (Hoshina et al. 1958). Since then, the disease has increased in importance, with outbreaks occurring in numerous fish species including yellowtails (Kusuda et al.
Carnobacterium piscicola On TSA, Car. piscicola produces small round, entire, shiny, opaque colonies that develop within 48 h. 6 mm in size. Other phenotypic traits of the lactobacilli include the inability to produce catalase (catalase-positive isolates were described by Starliper et al. 1992), H2S, indole, gelatinase, urease, the Voges Proskauer reaction, arginine hydrolysis, or lysine or ornithine decarboxylases or reduce nitrates. However, the isolates produce acid from fructose, galactose, glucose, glycerol, inulin, lactose, maltose, mannitol, melibiose, salicin, starch, sucrose and trehalose, but not raffinose, sorbitol or xylose (Schmidtke and Carson 1994).
The aetiological agent was Aer. hydrophila .............................................................. A dissected abscess on a rainbow trout revealing liquefaction of the muscle and haemorrhaging. The aetiological agent was Aer. hydrophila ................................... Aeromonas infection in goldfish, which is also displaying abdominal swelling and some surface haemorrhaging .................. Generalised liquefaction of a rainbow trout associated with infection by Aeromonas .........................................................