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Open AccessJournal ArticleDOI

The bacterial microflora of fish, revised.

Brian Austin
- 11 Aug 2006 - 
- Vol. 6, pp 931-945
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TLDR
It is shown that fish possess bacterial populations on or in their skin, gills, digestive tract, and light-emitting organs, and taxa, including Pseudomonas, may contribute to spoilage by the production of histamines in fish tissue.
Abstract
The results of numerous studies indicate that fish possess bacterial populations on or in their skin, gills, digestive tract, and light-emitting organs. In addition, the internal organs (kidney, liver, and spleen) of healthy fish may contain bacteria, but there is debate about whether or not muscle is actually sterile. Using traditional culture-dependent techniques, the numbers and taxonomic composition of the bacterial populations generally reflect those of the surrounding water. More modern culture-independent approaches have permitted the recognition of previously uncultured bacteria. The role of the organisms includes the ability to degrade complex molecules (therefore exercising a potential benefit in nutrition), to produce vitamins and polymers, and to be responsible for the emission of light by the light-emitting organs of deep-sea fish. Taxa, including Pseudomonas, may contribute to spoilage by the production of histamines in fish tissue.

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Enzyme‐producing bacteria isolated from fish gut: a review

TL;DR: The present review will critically evaluate the experimental results on the secondary factor, enzymatic activity and possible contribution of the fish gut microbiota in nutrition to establish whether or not intestinal microbiota do contribute to fish nutrition.
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Mucosal immunoglobulins and B cells of teleost fish

TL;DR: The purpose of this review is to summarise the current knowledge of mucosal immunoglobulins and B cells of fish MALT, and attempt to integrate the existing knowledge on both basic and applied research findings on fish mucosal immune responses to provide new directions that may facilitate the development of novel vaccination strategies.
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A new view of the fish gut microbiome: Advances from next-generation sequencing

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Teleost skin, an ancient mucosal surface that elicits gut-like immune responses.

TL;DR: The findings suggest that, regardless of their phylogenetic origin and tissue localization, the chief immunoglobulins of all mucosa-associated lymphoid tissue operate under the guidance of primordially conserved principles.
References
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Book

Bacterial Fish Pathogens: Disease of Farmed and Wild Fish

TL;DR: The structure of fish the meaning of disease in relation to fish anaerobic pathogens gram-positive bacteria - the ...lactic acid bacteria... aerobic gram- positive rods and cocci excluding the lactobacilli.
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Gnotobiotic zebrafish reveal evolutionarily conserved responses to the gut microbiota.

TL;DR: Methods for producing and rearing germ-free zebrafish through late juvenile stages are developed and established as a useful model for dissecting the molecular foundations of host-microbial interactions in the vertebrate digestive tract.
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Bacterial Interactions in Early Life Stages of Marine Cold Water Fish.

TL;DR: Successful rearing of early life stages of several marine fish species depends on knowledge of the complex interactions among the cultured organisms and the bacterial communities which develop at the mucosal surfaces and in the ambient water and rearing systems.
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Use of Carnobacterium sp. as a probiotic for Atlantic salmon (Salmo salar L.) and rainbow trout (Oncorhynchus mykiss, Walbaum).

TL;DR: Feeding salmonids with diets containing the probiotic revealed that the isolate remained viable in the gastrointestinal tract, and challenge by cohabitation indicated effectiveness at reducing disease caused by A. salmonicida, V. ordalii and Y. ruckeri but not V. anguillarum.
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Interactions between fish larvae and bacteria in marine aquaculture

TL;DR: There is a need for better microbial control during intensive larval production of marine larvae in intensive systems, and the use of probiotics has proven advantageous in domestic animal production, and microbial management may also have a potential in aquaculture.
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