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The article discusses a study related to assessment of non-native fish dispersal from a freshwater aquaculture site. It mentions completion of freshwater aquaculture of cyprinid fishes in pond systems; and limited natural dispersal at the aquaculture facility in Southern England that was licensed for Pseudorasbora parva fishes. It also highlights issues when P. parva were detected drifting out of the site.

The article presents the proliferation of managed, stillwater fisheries with non-native fishes. It gives out a demand for increased angling diversity and large game fishing opportunities. Also, this has enabled the species such as the catfish to achieve a relatively wide distribution, despite the ecological concerns. The existence of legislation in England and Wales regulates the distribution of non-native species in fisheries. Their high angling demand often results in illegal introduction, specifically species of sturgeon of the genus Acipenser.