Basf Aktiengesellschaft

Cellkem Oy

Dieter Zeller

Norbert Mahr

Anton Negele

J&uuml;rgen Decker

J&uuml;rgen Tropsch

Wolfgang Reuther

Claudia Nilz

John-Bryan Speakman

Ulrich Steuerle

Charlotte Johansen

David Wilson Ashworth

Norbert Gebhardt

Angelika Benz

Pertti Mattila

A method of reducing the level of bacteria and viruses in a volume of water during aquaculture comprises:&#x2014;(a) providing the volume of water to be stocked with farmed aquatic organisms or eggs thereof; (b) prior to the stocking, introducing into the water an aqueous solution of glutaraldehyde in an amount such as to provide in the water from 0.1 to 2 ppm of glutaraldehyde; (c) stocking the water with the farmed aquatic organisms or eggs thereof at a time when the concentration of glutaraldehyde is 0.1 to 2 ppm. (d) allowing the farmed aquatic organisms or eggs thereof to grow; and (e) optionally during a period of the growth, introducing into the water at least one further portion of an aqueous solution of glutaraldehyde in an amount such as to maintain the concentration of the glutaraldehyde at 0.1 to 2 ppm.

Reducing the level of bacteria and viruses in aquaculture

Use of water-soluble polymers as biocides

Use of polymers as biocides

The use of polymers containing &bgr;-hydroxyalkylvinylamine units, as obtainable by reacting polymers containing vinylamine units with epoxides of the formula

Use of polymers containing &bgr;-hydroxyalkylvinylamine units as biocides

Use of aminoisothiazoles as microbicides

Method for inhibiting enzymatic decomposition of peroxide in the

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Speyer, Germany

Dieter Zeller