J. Stewart Smith (16 January 1913 – 21 May 2008) was an Englishman in New Zealand known for releasing several species of invasive freshwater fish into the country's waterways. A self-proclaimed Communist, Smith's goal was to introduce the coarse fishing of his childhood to New Zealand, which originally only had small native galaxias and introduced trout to fish for (which was something only the upper class could afford to do). Over the course of several decades, Smith would smuggle in fish and breed them in his garage in Massey, before releasing the offspring into rivers and lakes all over the North Island.
