Nasa image shows phytoplankton bloom off Scotland Published duration 29 June 2018

image copyright NASA/GSFC image caption The bloom shown in the Nasa image as a smoky blue-green shapes in the sea

A phytoplankton bloom stretching along the west and north coasts of the Western Isles and Highlands mainland has been captured in a Nasa image.

Dr Edward Graham, a meteorologist at the University of the Highlands and Islands' Lews Castle College UHI, has described the image as "remarkable".

Phytoplankton are microscopic marine algae that need sunlight to survive.

The bloom was photographed by a Nasa satellite during this week's hot and sunny weather.