G. M. Thomson

George Malcolm Thomson (2 October 1848 – 25 August 1933) was a New Zealand scientist, educationalist, social worker and politician.

Born on 2 October 1848 in Calcutta, Thomson grew up in Scotland, being educated at the Edinburgh High School and the University of Edinburgh. At the age of 20, he emigrated to New Zealand, and, apart from a short period farming at Mabel Bush, Southland, spent the rest of his life in Dunedin. He was said to "know his Dunedin like a book".

Thomson's scientific interests were wide, including fisheries, crustaceans and the naturalisation of species. Thomson was one of the first scientists to recognise the potential for invasive species to be introduced via ship's ballast. He helped establish the Portobello Marine Laboratory in 1904.

Outside science, he founded many organisations, and was a member of the New Zealand Parliament for Dunedin North from the 1908 election for two parliamentary terms to 1914 and a member of the Legislative Council from 7 May 1918 for two seven year terms until 6 May 1932.

Thomson died in Dunedin on 25 August 1933.

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