During 8 years (before, during and after the storm-surge barrier) phytoplankton was measured at two stations in the Oosterschelde (inner harbour and the estuary, the Netherlands) by Kees Bakker.
This monitoring took place on a weekly basis during summer and less frequent during winter. In total about 35 samples were taken per year. Around 120 species were identified. Besides species, also environmental parameters, such as temperature, wind, etc.. were measured.
Size reference: 2 stations; about 280 samples; about 120 species; 12,782 distribution records
[ Source: The information provided in the summary was extracted from the MarBEF Data System at http://www.marbef.org/data/eurobisproviders.php