Glowing

Hamsi
John Anderson
Fri 30 Jun 2017 18:16
This afternoon we sailed onto Admiralty chart no. 2 ‘The British Isles’,
and are currently at the same longitude as Rockall.
There is always an area of low pressure somewhere. Tonight one is
forecast to pass to the north of us, strengthening winds from the west.
We’ve just started to feel the effect of that now with wind speed, and boat
speed, picking up a bit compared to this afternoon’s more gentle following
wind.
One of the most impressive bits of wildlife this year has been at the
microscopic scale. It has been a particularly good year for
phosphorescence. On dark nights our wake has been brightly illuminated by
the organisms in the water that cause this. Mixed in with their light
greenish glow has been pin point flashes of brighter light, presumably from
larger organisms at the microscopic scale. As Ruth discovered, on another
year, if you flush the loo on a good phosphorescence night, the water glows and
flashes and the tubing containing the water glows greenish. I’ve been
having some fun with that again this year. We don’t get the same thing at
home.
55:09.82N 13:30.83W |