Marine Biology

Download Bacterial fish pathogens : disease of farmed and wild fish by Brian Austin, Dawn A. Austin PDF

By Brian Austin, Dawn A. Austin

This ebook places emphasis at the isolation, taxonomy, analysis (phenotypic, serology and molecular biology), epizootiology, pathogenicity mechanisms, and strategies of illness regulate (by vaccination, immunostimulation, probiotics, prebiotics, plant items, and antimicrobial compounds. Co-infections, that are attributed to a couple of microbial species were mentioned. Shortcomings in wisdom were highlighted. This 6th variation is the successor to the unique model, first released in 1987, and which fills the necessity for an up to date accomplished textual content at the organic features of the bacterial taxa which reason illness in finfish.

The ebook is essentially detailed at researcher staff, together with postgraduate scholars, and diagnosticians. it really is expected that the readership will contain veterinary microbiologists, public overall healthiness scientists and microbial ecologists. 

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Extra info for Bacterial fish pathogens : disease of farmed and wild fish

Example text

Fortuitum, Myc. gordonae, Myc. marinum, Myc. peregrinum and Mycobacterium spp. Of these Myc. gordonae and Myc. , 2005). Unfortunately, the authors did not address the pathogenicity of the isolates. Similarly, Rhodes et al. (2004) recovered a range of mycobacteria from striped bass in Chesapeake Bay, Virginia, and based on phenotypic traits included Myc. interjectum, Myc. marinum, Myc. scrofulaceum, Myc. shottsii, Myc. szulgai and Myc. , 2004b). Again, some of these taxa are new to fish pathology, and deserve further study.

G. ulcer disease of cod (Larsen and Jensen, 1977). The aetiological agent has been considered to be the dominant cause of motile aeromonas disease in China (Nielsen et aL, 2001), and may well have worldwide distribution. However, some doubt has been expressed over its precise role as a fish pathogen (Heuschmann-Brunner, 1965b; Eurell et aL, 1978; Michel, 1981) with some workers contending that it may be merely a secondary invader of already compromised hosts. Conversely, other groups have insisted that Aer.

The acute form of furunculosis, which is most common particularly in growing fish and adults, is manifested by a general septicaemia accompanied by melanosis, inappetence, lethargy and small haemorrhages at the base of the fins. This form of the disease is of short duration, insofar as the fish usually die in 2-3 days, and causes high mortalities. The bacteria occur in the blood, disseminated throughout the tissues, and in the lesions. Internally, haemorrhaging occurs over the abdominal walls, viscera and heart.

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