Although this is not biological I thought that some iSpotters might run their own met stations. Geoff Jenkins formerly of the Met Office brought this to my attention. The pressure wave from the Tonga volcano travelled around the world and could be detected by “garden” met stations. There is a website called Wunderground where you can see current weather and also search for historic data.
If you look at Jan 15 data, some of the stations show a “blip” - it may depend on the sensitivity of the station equipment.
Shows the pressure pattern for Lawford Somerset
This is a detail from it
This is for Stromness (it got to you Derek!) and is slightly earlier than Somerset
This site gives more info and shows the wave propagation