In the long-term analysis group we study the climatic and biological data from the Helgoland Roads which include important marine and biological data such as phyto- and zooplankton daily species counts. We perform the analysis of fluctuations of the climatic data from seasonal variations to the shorter scales and study the related alternations in the phyto- and zooplankton concentrations. Also investigated are biodiversity changes associated with the warming temperature trend and an increasing impact of marine environment at the Helgoland site in the latest decades. One of our research activities focuses on the changes in blooming behavior and in overall community composition for zoo- and phytoplankton at Helgoland Roads. To detect important species-environment relationships the environmental drivers such as temperature, salinity , secchi depth and atmospheric circulation and biological data are investigated by application of numerical techniques such as multivariate analysis, cross-correlation and fluctuation analyses.
In future we plan to couple the hydrographical models around Helgoland, North Sea, with the observational data for explaining the existing correlations between the alternating sea currents and the sampled biota which features high temporal variability.
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