Marine Biology

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

By Brian Austin, Dawn A. Austin

This revised variation fills the necessity for an updated accomplished publication at the organic facets of the bacterial taxa which reason ailment in fish. because the third version used to be released in 1999, a lot has replaced within the keep watch over of ailment of farmed and wild fish. This e-book analyses all of the new info, together with that on new pathogens and new advancements on lengthy verified illnesses, corresponding to furunculosis and vibriosis. attention is given to the entire bacterial taxa that have at a while been suggested as fish pathogens, whether or not they are secondary invaders of already broken tissue or severe, basic pathogens.

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Extra info for Bacterial Fish Pathogens: Disease of Farmed and Wild Fish

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A. , 1996), in white spotted rabbitfish (Siganus canaliculatus) in Bahrain (Yuasa et al, 1999), in barramundi (Lates calcarifer) in Australia 18 Bacterial Fish Pathogens (Bromage et ai, 1999) and in caged and wild fish from the Red Sea (Colorni et ai, 2002). Sir. iniae serotype II infection led to rainbow trout displaying lethargy, discoloration, loss of orientation, bilaterial exophthalmia, corneal opacity and haemorrhaging in the eye, and surface and internal (mostly in the spleen and fat around the intestine) haemorrhaging leading to death (Lahav et ai, 2004).

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.

Szulgai and Myc. , 2004b). Again, some of these taxa are new to fish pathology, and deserve further study. , from ulcers, and Myc. fortuitum, Myc. gordonae and Myc. , 2005). In their excellent review, Kaattari et al. (2006) discuss all the currently recognised mycobacterial fish pathogens, including the new but not formally named species, Myc. "chesapeaki". Nocardiaceae representatives Nocardia spp. , 2000). Symptoms similar to mycobacteriosis develop in affected fish. All age groups may be infected, with lesions, manifested as small white spots, present in the dermis, muscle, gills and internal organs.

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