IMIS - Marine Onderzoeksgroepen

This dataset contains phytoplankton data from 1999 (collected at stations B and D), phytoplankton data from 2002-2004 (collected at station A), Emiliania huxleyi data from 2002-2010 (collected at station A) and zooplankton data from 2002-2004 (collected at station A). The changes in the quality and quantity of phytoplankton and zooplankton are being monitored at (roughly) one month intervals. Phytoplankton is being sampled at the sea surface, zooplankton samples are being obtained by one vertical tow from 50m water depth to the sea surface. Phytoplankton total abundance is given in individuals/liter (1999 data) and µg/l (2002-2004 data). No taxa data is available for the phytoplankton. The Emiliania huxleyi data is restricted: this data should be considered as presence data. Zooplankton total abundance is given in ind/m², which is calculated as follows:

• B = Abundance (ind/m²) = C / A
• C = Total individual numbers in sampling
• A = Area of the net mouth (m²) = 3.14 x r² with r = Diameter of the net mouth (m)