O. Setälä

Publications73
h-index23
Citations3,262
Highly Influential Citations150
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Solutions to microplastic pollution - Removal of microplastics from wastewater effluent with advanced wastewater treatment technologies.
Ingestion and transfer of microplastics in the planktonic food web.
How well is microlitter purified from wastewater? - A detailed study on the stepwise removal of microlitter in a tertiary level wastewater treatment plant.
Do wastewater treatment plants act as a potential point source of microplastics? Preliminary study in the coastal Gulf of Finland, Baltic Sea.
TLDR
WWTPs may operate as a route for microplastics entering the sea because the average fibre concentration was 25 times higher and the particle concentration was three times higher in the effluent compared to the receiving body of water.
Simultaneous measurement of food particle selection and clearance rates of planktonic oligotrich ciliates (Ciliophora: Oligotrichina)
TLDR
The overall ciliate food size spectrum covered the size range of the most abundant food items in the Baltic summer plankton, and there appears to be 2 different feeding strategies: specialistic and generalistic, where the ciliates either concentrate on feeding on a narrow sizerange of food organisms, or use food particles of a wide size range, with little or no preferences within this range.
Planktonic ciliates in the Baltic Sea in summer: distribution, species association and estimated grazing impact
TLDR
A deep-water association characterized by large ciliates was found at the oxic/anoxic water interface at the 2 deepest stations, Bornholm and Gotland Basins, in both years, whereas the other associations found were found closer to the surface.
Distribution and abundance of surface water microlitter in the Baltic Sea: A comparison of two sampling methods.
Feeding type affects microplastic ingestion in a coastal invertebrate community.
Survival and photosynthetic activity of different Dinophysis acuminata populations in the northern Baltic Sea
Distribution and reproduction of the Arctic ctenophore Mertensia ovum in the Baltic Sea
TLDR
Comparison with published data from the 1980s indicates that the present-day ctenophore abundance is ~80% lower in the north and ~55% higher in the southern parts of the Baltic Sea, due to reasons yet to be established.
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