Andrew Picken Orr

Andrew Picken Orr FRSE ARIC (1898–1962) was a 20th-century Scottish oceanographer and was an expert on phytoplankton and copepod biology.

Life

He was born in Ayrshire on 6 August 1898. He was educated at Kilmarnock Academy.

In the First World War he served as a 2nd Lieutenant in the Royal Scots Fusiliers. He served in France and was wounded in action then captured as a prisoner-of-war.[1] After the war he studied Science at Glasgow University graduating MA BSc.

In 1923 he became chemist to the Millport Research Station and in 1929 was part of the Great Barrier Reef Expedition with Sheina Marshall in 1929,[2] working with her for around 40 years in total. Orr rose to be Depute Director of the station.

In 1948 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Sir Maurice Yonge, Charles Wynford Parsons, Otto Lowenstein and James Wilfred Cook.[3]

He died on 19 September 1962. On his death Sheina Marshall became Depute Director at Millport.

Publications
  • Sedimentation on Low Isles Reef (1931)
  • The Biology of a Marine Copepod (1955) with Sheina Marshall
  • On the Biology of Calanus Finmarchicus (1955) with Sheina Marshall
gollark: My theory of what's up, copied from the forum thread:If many new eggs are being introduced to the system, then that will most affect the stuff which is rarest, by making it rarer by comparison, but commons will stay the same. As for why it happened now? Weekly updates, possibly.Example:Imagine there are 200 dragons, 5 of which are golds.The ratio of golds to total dragons is now 5:200 = 1:40. If the target ratio is 1:50 then prices will be higher to compensate.Now imagine there are an extra 200 dragons added, none of which are golds.The ratio would then be 5:400 = 1:80. Then, assuming the same target, prices will drop.This is of course simplified, and the ratios may not work like this, but this matches observed behavior pretty well.
gollark: That why was rhetorical.
gollark: As I said on the forums:```That makes sense. If many new eggs are being introduced to the system, then that will most affect the stuff which is rarest, by making it rarer by comparison, but commons will stay the same. As for why it happened now? Weekly updates, possibly.```
gollark: Why?
gollark: I think it's just halloween.

References
  1. "University of Glasgow :: Story :: Biography of 2nd Lieutenant A P Orr". universitystory.gla.ac.uk. Retrieved 18 March 2018.
  2. Biological Oceanography: An Early History 1870–1960, Eric L Mills
  3. Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783 – 2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 0 902 198 84 X. Archived from the original (PDF) on 4 March 2016. Retrieved 14 November 2017.


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