The Biologische Anstalt Helgoland has a long tradition in the generation, archival and analysis of marine, ecological time series. The first temperature and salinity time series were started in 1873. The earliest macroalgal data were also collected in the 19th century.
In 1962 one of the most important time series, the so-called Helgoland Roads time series on plankton was initiated. In the context of that monitoring programme, phytoplankton data are quantitatively analysed every working day. Therefore this time series represents one of the temporally most highly resolved time series in Europe. Since 1974 additional data on zooplankton have also been collected and are now being analysed thrice weekly. In addition to these core time series, bacterial counts have also been carried for over 40 years, although this time series has now been discontinued
The macroalgal and macrobenthos communities have also been invesgtigated periodically (although not continuously). However, the fact that the 'Helgoländer Felswatt' is the only habitat of this nature in Germany, makes this data set all the more valuable.