A5006695856- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Arctic and Antarctic ice dynamics
- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Protist diversity and phylogeny
- Aquatic Ecosystems and Phytoplankton Dynamics
- Methane Hydrates and Related Phenomena
- Marine Bivalve and Aquaculture Studies
- Ocean Acidification Effects and Responses
- Marine and fisheries research
- Research in Social Sciences
- Wastewater Treatment and Nitrogen Removal
- Bacteriophages and microbial interactions
- Atmospheric chemistry and aerosols
- Turfgrass Adaptation and Management
- Environmental DNA in Biodiversity Studies
- Oceanographic and Atmospheric Processes
- Marine and coastal plant biology
- Marine Toxins and Detection Methods
- Coastal wetland ecosystem dynamics
- Polar Research and Ecology
- Plant pathogens and resistance mechanisms
- Irrigation Practices and Water Management
- Physiological and biochemical adaptations
Finnish Environment Institute
1997-2024
Marine Research Centre
2011
University of Helsinki
1997-1999
Abstract The flocculation of dissolved organic matter (DOM) was studied along transects through three boreal estuaries. Besides the bulk concentration parameters, a suite DOM quality parameters were investigated, including colored (CDOM), fluorescent DOM, and molecular weight as well associated iron concentrations. We observed significant deviations from conservative mixing at low salinities (<2) in estuarine samples carbon (DOC), UV absorption ( (CDOM254) ), humic‐like fluorescence....
Abstract. The microbial degradation of dissolved organic carbon and nitrogen (DOC, DON) was studied in three Finnish boreal estuaries with contrasting land use patterns (Kiiminkijoki – natural forest peatland; Kyrönjoki agricultural; Karjaanjoki mixed/urban). Bioassays 12–18 d long durations were used 3 seasons at situ temperatures. Besides the bulk parameters, a suite matter (DOM) quality parameters also investigated, including colored DOM (CDOM), fluorescent molecular weight DOM....
Abstract During sea-ice formation, the dissolved constituents of water are rejected from ice crystals. initial fractionation organic matter (DOM) in Baltic Sea was studied through two freezing experiments and by sampling natural sea ice. DOM characterized spectral absorption chromophoric (CDOM) parallel factor analysis fluorescence. Molecular weight measurements were applied to assess changes molecular size distribution new relative parent water. Both newly formed artificial ice, CDOM...
Horizontal, vertical, and temporal variability of chlorophyll a (Chl ), stratification, currents, pelagial biology (phytoplankton, size‐fractionated primary productivity Chl , ciliates, picocyanobacteria, bacterial production) were followed at the entrance to Gulf Finland during 12‐day cast study in July–August 1994. The was carried out weak wind conditions when hydrodynamic activity minimal an intense blooming diazotrophic cyanobacteria Aphanizomenon flos‐aquae (Linné) Ralfs, Anabaena...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 151:27-41 (1997) - doi:10.3354/meps151027 Summer dynamics of coastal planktonic food web in northern Baltic Sea Uitto A, Heiskanen AS, Lignell R, Autio Pajuniemi R carbon flow pelagic was studied within region Sea. Heterotrophic nanoflagellates (HNAN) transferred from picoplankton ciliates, while ciliates...
The structure of sea-ice bacterial communities is frequently different from that in seawater. Bacterial entrainment sea ice has been studied with traditional microbiological, abundance, and production methods. However, the dynamics changes during transition open water to frozen largely unknown. Given previous evidence nutritional status parent may affect formation, succession was under two series mesocosms: first containing seawater North Sea second enriched algal-derived dissolved organic...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 60:43-57 (2010) - DOI: https://doi.org/10.3354/ame01408 Phosphate addition phosphorus-deficient Baltic Sea plankton communities benefits nitrogen-fixing Cyanobacteria Emil Vahtera1,2,*, Riitta Autio1,3, Hermanni Kaartokallio1,3, Maria Laamanen1,4 1Department of Biological Oceanography, Finnish Institute Marine Research,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 599:19-34 (2018) - DOI: https://doi.org/10.3354/meps12645 Phases of microalgal succession in sea ice and water column Baltic Sea from autumn spring Sara Enberg1,2,*, Markus Majaneva1,2,3, Riitta Autio4, Jaanika Blomster2, Janne-Markus Rintala1,2,5 1Tvärminne Zoological Station, University Helsinki, J.A....
Experimental enclosures were used to follow responses of the plankton~c microbial food web varying short-tern~ (5 d) perturbations induced by adding inorganic nutrients ( N and P) a top predator (fish) during 21 d period in late summer, on coastal area Baltic Sea.Biomass, production, growth grazing pico-and nanoplankton assemblages estimated, carbon budget for loop experiment was constructed.The highly dynamic system.Varying due nutrient loading provoked eutrophication enclosures, but they...