Brown and black bullheads: Changing pH
Overall effectiveness category Awaiting assessment
Number of studies: 0
Background information and definitions
Some species of fish are sensitive to pH changes and this can offer a tool for localised eradication or population reduction, provided potentially negative effects on native species are carefully managed. Draining ponds and altering pH has been shown to be effective in local eradication of other fish species. For example, a before-and-after study in the UK found that draining ponds and altering pH using lime slurry, eradicated topmouth gudgeon Pseudorasbora parva (Britton et al. 2008).
Britton R., Brazier M., Davies G.D. & Chare S.I. (2008) Case studies on eradicating the Asiatic cyprinid Pseudorasbora parva from fishing lakes in England to prevent their riverine dispersal. Aquatic Conservation: Marine and Freshwater Ecosystems, 18, 867-876.