Phagotrophic protists are key players in aquatic food webs. Although sequencing-based
studies have revealed their enormous diversity, ecological information on in situ abundance …

Monthly samplings carried out in 2016–2019 and satellite color images from 2002 to 2019
have been combined to determine the onset and causative species of the ecosystem …

A 15-year (1997–2012) time series of chlorophyll a (Chl a) in the Baltic Sea, based on
merged multi-sensor satellite data was analysed. Several available Chl a algorithms were …

In situ, satellite and reanalysis data from numerical models were used to study the
characteristic features of Chl variability in the Baltic Sea. The analysis is focused on the …

Pico-and nanoplanktonic protists (eukaryotic microorganisms with cell size of< 3 μm and 3–
20 μm, respectively) are the key component of plankton communities. However, their …

Anthropogenic nitrogen input to the western Baltic Sea has continued to decline by about
30% since 1995, whereas phosphorus input, after a strong decrease of 25% from 1995 to …

Environmental drivers and food web structure in the pelagic zone vary from south to north in
the Baltic Sea. 2. While nitrogen is generally the limiting nutrient for primary production in the …

Thiamin (vitamin B 1) is mainly produced by bacteria and phytoplankton and then
transferred to zooplankton and higher trophic levels but knowledge on the dynamics of these …

The phytoplankton biomass in the Baltic Sea is low during the cold-water season (October to
May) compared to the warm-water season (June to September). However, the sea ice is a …

The effects of an extensive bloom of the potentially toxic Prymnesium polylepis (Haptophyta)
on breeding eiders (Somateria mollissima) in the Baltic Sea were analysed. Increasing …