Are rodent baits toxic to fish as well as mammals?

Rodent baits often contain anticoagulants and other toxic substances intended to kill rodents. When these baits enter the environment, they have the potential to harm non-target species, including fish. Many of the active ingredients in rodenticides can be harmful to a wide range of organisms, not just mammals. This is especially true because if rodents that have consumed these baits die near water sources or if the bait gets washed into waterways, there is a risk that the toxins could be ingested by fish.

The composition of these baits, combined with the potential for environmental contamination, means that caution must be exercised when using rodenticides, particularly in aquatic environments. Thus, the assertion that rodent baits are toxic to fish, as well as mammals, is substantiated by the chemical properties of the ingredients commonly used in such products.