Phytoplankton abundance data for Spring and Autumn of 2018 in the Celtic Sea

Phytoplankton abundance data collected on the RV Cefas Endeavour as part of
CEND05_18 and CEND17_18, CEND03_19 and CEND04_19. Samples were collected for
use in eutrophication assessments and to test the Ferrybox water sampler.
These samples were analysed at CEFAS.

Samples were collected using three different methods:

( 1.)Manually from a rosette.
( 2.)Manually from the continuous flow.
( 3.)Automatically with a water sampler attached to the Ferrybox.