O. Setälä

Publications61
h-index21
Citations2,260
Highly Influential Citations129
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Ingestion and transfer of microplastics in the planktonic food web.
Experiments were carried out with different Baltic Sea zooplankton taxa to scan their potential to ingest plastics. Mysid shrimps, copepods, cladocerans, rotifers, polychaete larvae and ciliates were… Expand
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Solutions to microplastic pollution - Removal of microplastics from wastewater effluent with advanced wastewater treatment technologies.
Conventional wastewater treatment with primary and secondary treatment processes efficiently remove microplastics (MPs) from the wastewater. Despite the efficient removal, final effluents can act as… Expand
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Do wastewater treatment plants act as a potential point source of microplastics? Preliminary study in the coastal Gulf of Finland, Baltic Sea.
This study on the removal of microplastics during different wastewater treatment unit processes was carried out at Viikinmäki wastewater treatment plant (WWTP). The amount of microplastics in the… Expand
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Simultaneous measurement of food particle selection and clearance rates of planktonic oligotrich ciliates (Ciliophora: Oligotrichina)
Ohgotrich ciliates are a major microzooplankton component in the northern Baltic Sea during summer The use of wheat starch particles as a tracer-level food source enabled us to simultaneously… Expand
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Planktonic ciliates in the Baltic Sea in summer: distribution, species association and estimated grazing impact
Samples for studying the ciliate communities of the open Baltic Sea were taken on 2 transects from the Kattegat to the entrance of the Gulf of Finland during 1988 and 1990. The abun- dance of HCIL… Expand
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How well is microlitter purified from wastewater? - A detailed study on the stepwise removal of microlitter in a tertiary level wastewater treatment plant.
Wastewater treatment plants (WWTPs) can offer a solution to reduce the point source input of microlitter and microplastics into the environment. To evaluate the contributing processes for microlitter… Expand
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Distribution and abundance of surface water microlitter in the Baltic Sea: A comparison of two sampling methods.
Two methods for marine microlitter sampling were compared in the Gulf of Finland, northern Baltic Sea: manta trawl (333μm) and a submersible pump (300 or 100μm). Concentrations of microlitter… Expand
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Feeding type affects microplastic ingestion in a coastal invertebrate community.
Marine litter is one of the problems marine ecosystems face at present, coastal habitats and food webs being the most vulnerable as they are closest to the sources of litter. A range of animals… Expand
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Survival and photosynthetic activity of different Dinophysis acuminata populations in the northern Baltic Sea
Abstract This study deals with a recently found phenomenon in the northern Baltic Sea: the occurrence of the dinoflagellate Dinophysis acuminata in the deep water below the thermocline. This was… Expand
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Application of an enzyme digestion method reveals microlitter in Mytilus trossulus at a wastewater discharge area.
The ingestion of microlitter by blue mussels (450) was studied at a wastewater recipient area in the Baltic Sea. The mussel soft tissues were digested using enzymatic detergents and the detected… Expand
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