Abstract: The present document discloses methods and means for treating and/or preventing ectoparasite infestations and/or gill parasite infection in teleosts by the administration of probiotic bacteria to the teleosts.

Abstract: The present document is directed to probiotic bacteria and their use in fish farming for increasing the weight of fish and for treating and/or preventing a microbial infection of the fish. The bacteria are species within the Aliivibrio, Psychrobacter and Pseudomonas genera.

Abstract: The present document discloses a method for producing a bacterial vaccine composition against bacterial diseases in animals, such as tetrapods or fish, wherein said bacterial vaccine composition comprises inactivated bacteria of the bacterium causing said bacterial diseases. The method involves exposing the bacteria to different growth conditions and then preparing a bacterial vaccine composition where the bacteria are exposed to different growth conditions. With vaccines prepared by the present method, bacterial diseases that previously had not been able to be cured could be treated or the effect of the treatment was more long-lasting.

Abstract: A method for increasing the weight and growth rate of fish, preferably Salmonidae, and for preventing and/or treating microbial infections, comprising the steps of a) adding one or more species of probiotic bacteria to water, wherein the species of bacteria comprises or consists of Aliivibrio njordis, Aliivibrio balderis and/or Aliivibrio nannie; and b) exposing the fish to the water containing the one or more species of probiotic bacteria. Preferably, the bacterial strains Aliivibrio njordis strain B1-25, 8-1/2013 mandib V11, Aliivibrio balderis B1-24, 18-1/2013 kidn V12 and/or Aliivibrio nannie B8-24, 313/2013 kidn V13 are used.

Abstract: A method for increasing the weight and growth rate of fish, preferably Salmonidae, and for preventing and/or treating microbial infections, comprising the steps of a) adding one or more species of probiotic bacteria to water, wherein the species of bacteria comprises or consists of Aliivibrio njordis, Aliivibrio balderis and/or Aliivibrio nannie; and b) exposing the fish to the water containing the one or more species of probiotic bacteria. Preferably, the bacterial strains Aliivibrio njordis strain B1-25, 8-1/2013 mandib V11, Aliivibrio balderis B1-24, 18-1/2013 kidn V12 and/or Aliivibrio nannie B8-24, 313/2013 kidn V13 are used.

Abstract: The present document discloses a new species of Aliivibrio, herein denoted Aliivibrio friggiae. A strain Aliivibrio friggiae, denoted Aliivibrio sp. 130206K7F2 506, has been deposited at the National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42181. Further disclosed is the medical use of Aliivibrio friggiae for vaccinating fish against a new disease identified and herein denoted friggiosis.

Abstract: The present document discloses a new species of Bizionia, herein denoted Bizionia piscinecroseptica and a reference strain of this bacterium denoted Bizionia sp. 130524K2F7 which has been deposited at the National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42183. Further disclosed is the medical use of bacteria of the genus Bizionia for vaccinating fish against a new disease identified and herein denoted bizioniosis.

Abstract: The present document discloses a new species of Bizionia, herein denoted Bizionia piscinecroseptica and a reference strain of this bacterium denoted Bizionia sp. 130524K2F7 which has been deposited at the National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42183. Further disclosed is the medical use of bacteria of the genus Bizionia for vaccinating fish against a new disease identified and herein denoted bizioniosis.

Abstract: The present document discloses a new species of Aliivibrio, herein denoted Aliivibrio friggiae. A strain Aliivibrio friggiae, denoted Aliivibrio sp. 130206K7F2 506, has been deposited at the National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42181. Further disclosed is the medical use of Aliivibrio friggiae for vaccinating fish against a new disease identified and herein denoted friggiosis.