Ursula Strandberg

Water quality shapes the community structure of zoobenthos in rivers but only has a minor effect on the fatty acid composition of zoobenthos and salmonids

Kesti, Petri; Strandberg, Ursula; Taipale, Sami; Hiltunen, Minna; Vesterinen, Jussi; Vainikka, Anssi; Kankaala, Paula. 2024. River research and applications. 40: 436-451

Environmental drivers alter PUFA content in littoral macroinvertebrate assemblages via changes in richness and abundance

Strandberg, Ursula; Arhonditsis, George; Kesti, Petri; Vesterinen, Jussi; Vesamäki, Jussi S.; Taipale, Sami J.; Kankaala, Paula. 2023. Aquatic sciences. 85: . 100

Herbivorous cladoceran essential fatty acid and cholesterol content across a phosphorous and DOC gradients of boreal lakes-Importance of diet selection

Keva, Ossi; Litmanen, Jaakko J; Kahilainen, Kimmo K; Strandberg, Ursula; Kiljunen, Mikko; Hamalainen, Heikki; Taipale, Sami J. 2023. Freshwater biology. 68: 752-766

Intra-specific correlations between fatty acids and morphological traits are consistent across fish species

Arnillas, Carlos Alberto; Abedi, Roya; Parzanini, Camilla; Strandberg, Ursula; Arts, Michael T; Bhavsar, Satyendra P; Arhonditsis, George B. 2023. Journal of great lakes research. 49: 821-835

Allochthony, fatty acid and mercury trends in muscle of Eurasian perch (Perca fluviatilis) along boreal environmental gradients

Keva, Ossi; Kiljunen, Mikko; Hämäläinen, Heikki; Jones, Roger I.; Kahilainen, Kimmo K.; Kankaala, Paula; Laine, Miikka B.; Schilder, Jos; Strandberg, Ursula; Vesterinen, Jussi; Taipale, Sami J.. 2022. Science of the total environment. 838:

Browning-induced changes in trophic functioning of planktonic food webs in temperate and boreal lakes: insights from fatty acids

Strandberg, Ursula; Hiltunen, Minna; Creed, Irena F.; Arts, Michael T.; Kankaala, Paula. 2022. Oecologia. 2023; 201: 183-197

Combined effects of eutrophication and warming on polyunsaturated fatty acids in complex phytoplankton communities: A mesocosm experiment

Strandberg, Ursula; Hiltunen, Minna; Syväranta, Jari; Levi, Eti E.; Davidson, Thomas A.; Jeppesen, Erik; Brett, Michael T.. 2022. Science of the total environment. 843:

Periphyton as a key diet source of essential fatty acids for macroinvertebrates across a nutrient and dissolved organic carbon gradient in boreal lakes

Vesterinen, Jussi; Strandberg, Ursula; Taipale, Sami J; Kainz, Martin J; Kankaala, Paula. 2022. Limnology and oceanography. 67: 1604-1616

Lake browning impacts community structure and essential fatty acid content of littoral invertebrates in boreal lakes

Kesti, Petri; Hiltunen, Minna; Strandberg, Ursula; Vesterinen, Jussi; Taipale, Sami; Kankaala, Paula. 2021. Hydrobiologia. 2022; 849: 967-984

Taxonomic, Temporal, and Spatial Variations in Zooplankton Fatty Acid Composition in Puget Sound, WA, USA

Hiltunen, Minna; Strandberg, Ursula; Brett, Michael T; Winans, Amanda K; Beauchamp, David A; Kotila, Miika; Keister, Julie E. 2021. Estuaries and coasts. 2022; 45: 567-581

Warming Decreases Bioconversion of Polyunsaturated Fatty Acids in Chironomid Larvae Maintained on Cyanobacterium Microcystis

Strandberg, Ursula; Ilo, Timo; Akkanen, Jarkko; Kankaala, Paula. 2021. Biomolecules. 11: 1326

Fatty acid metabolism and modifications in Chironomus riparius

Strandberg, Ursula; Vesterinen, Jussi; Ilo, Timo; Akkanen, Jarkko; Melanen, Miina; Kankaala, Paula. 2020. Philosophical transactions of the Royal Society B: biological sciences. 375: 20190643

Increasing concentration of polyunsaturated fatty acids in browning boreal lakes is driven by nuisance alga Gonyostomum

Strandberg, Ursula; Hiltunen, Minna; Rissanen, Ninni; Taipale, Sami; Akkanen, Jarkko; Kankaala, Paula. 2020. Ecosphere. 11: e03189

Interspecific differences in omega-3 PUFA and contaminants explain the most variance in suggested Great Lakes' fish consumption when risks/benefits are considered together

Strandberg, Ursula; Bhavsar, Satyendra P; Arts, Michael T. 2020. Journal of great lakes research. 46: 549-559

Lake restoration influences nutritional quality of algae and consequently Daphnia biomass

Taipale, SJ; Kuoppamäki, K; Strandberg, U; Peltomaa, E; Vuorio, K. 2020. Hydrobiologia. 847: 4539-4557

Nutritional quality of littoral macroinvertebrates and pelagic zooplankton in subarctic lakes

Vesterinen, Jussi; Keva, Ossi; Kahilainen, Kimmo K; Strandberg, Ursula; Hiltunen, Minna; Kankaala, Paula; Taipale, Sami J. 2020. Limnology and oceanography. 2021; 66: S81-S97

Browning reduces the availability - but not the transfer - of essential fatty acids in temperate lakes

Senar, Oscar E; Creed, Irena F; Strandberg, Ursula; Arts, Michael T. 2019. Freshwater biology. 64: 2107-2119

Population structure, life cycle, and trophic niche of the glacial relict amphipod, Gammaracanthus lacustris, in a large boreal lake

Salonen, Jouni K; Hiltunen, Minna; Figueiredo, Kaisa; Paavilainen, Pinja; Sinisalo, Tuula; Strandberg, Ursula; Kankaala, Paula; Taskinen, Jouni. 2019. Freshwater biology. 64: 2176-2188

Terrestrial organic matter quantity or decomposition state does not compensate for its poor nutritional quality for Daphnia

Hiltunen, Minna; Peltomaa, Elina; Brett, Michael ; Aalto, Sanni L; Strandberg, Ursula; Oudenampsen, Jarno; Burgwal, Leon M; Taipale, Sami J. 2019. Freshwater biology. 64: 1769-1786

Planktivorous vendace (Coregonus albula) utilise algae-derived fatty acids for biomass increase and lipid deposition

Strandberg U, Hiltunen M, Taipale SJ, Yeung S, Kankaala P. 2017. Ecology of freshwater fish. 2018; 27: 533-541

Trophic upgrading via the microbial food web may link terrestrial dissolved organic matter to Daphnia

Hiltunen Minna, Honkanen Milja, Taipale Sami, Strandberg Ursula, Kankaala Paula. 2017. Journal of plankton research. 39: 861-869

Combining resource use assessment techniques reveals trade-offs in trophic specialization of polymorphic perch

Scharnweber Kristin, Strandberg Ursula, Marklund Maria Helena Katarina, Eklöv Peter. 2016. Ecosphere. 7: e01387

Decrease of Population Divergence in Eurasian Perch (Perca fluviatilis) in Browning Waters: Role of Fatty Acids and Foraging Efficiency

Scharnweber Kristin, Strandberg Ursula, Karlsson Konrad, Eklöv Peter. 2016. PLoS ONE. 11: e0162470

Lake eutrophication and brownification downgrade availability and transfer of essential fatty acids for human consumption

Taipale S, Vuorio K, Strandberg U, Kahilainen K, Järvinen M, Hiltunen M, Peltomaa E, Kankaala P. 2016. Environment international. 96: 156-166

Spatial variability of mercury and polyunsaturated fatty acids in the European perch (Perca fluviatilis) - Implications for risk-benefit analyses of fish consumption

Strandberg Ursula, Palviainen Marjo, Eronen Aslak, Piirainen Sirpa, Laurén Ari, Akkanen Jarkko, Kankaala Paula. 2016. Environmental pollution. 216: 305-314

Terrestrial carbohydrates support freshwater zooplankton during phytoplankton deficiency

Taipale Sami J, Galloway Aaron WE, Aalto Sanni L, Kahilainen Kimmo K, Strandberg Ursula, Kankaala Paula. 2016. Scientific reports. 6: 30897

Selective transfer of polyunsaturated fatty acids from phytoplankton to planktivorous fish in large boreal lakes

Strandberg Ursula, Hiltunen Minna, Jelkänen Elli, Taipale Sami J, Kainz Martin J, Brett Michael T, Kankaala Paula. 2015. Science of the total environment. 536: 858-865

Taxonomic identity and phytoplankton diet affect fatty acid composition of zooplankton in large lakes with differing dissolved organic carbon concentration

Hiltunen Minna, Strandberg Ursula, Taipale Sami J, Kankaala Paula. 2015. Limnology and oceanography. 60: 303-317

Diet-specific biomarkers show that high-quality phytoplankton fuels herbivorous zooplankton in large boreal lakes

Galloway Aaron W, Taipale Sami J, Hiltunen Minna, Peltomaa Elina, Strandberg Ursula, Brett Michael T, Kankaala Paula. 2014. Freshwater biology. 59: 1902-1915

Differing Daphnia magna assimilation efficiencies for terrestrial, bacterial, and algal carbon and fatty acids

Taipale S, Brett MT, Hahn MW, Martin-Creuzburg D, Yeung S, Hiltunen M, Strandberg U, Kankaala P. 2014. Ecology. 95: 563-576

Distinctive Lipid Composition of the Copepod Limnocalanus macrurus with a High Abundance of Polyunsaturated Fatty Acids

Minna Hiltunen, Ursula Strandberg, Markku Keinänen, Sami Taipale, Paula Kankaala. 2014. Lipids. 49: 919-932

Retroconversion of docosapentaenoic acid (n-6): an alternative pathway for biosynthesis of arachidonic acid in Daphnia magna

Strandberg Ursula, Taipale Sami, Kainz Martin, Brett Michael. 2014. Lipids. 49: 591-595

Fatty acid composition as biomarkers of freshwater microalgae: analysis of 37 strains of microalgae in 22 genera and in seven classes

Taipale Sami, Strandberg Ursula, Peltomaa Elina, Galloway Aaron W.E., Ojala Anne, Brett Michael T.. 2013. Aquatic microbial ecology. 71: 165-178

Seasonal, spatial and taxonomic differences in fatty acid composition of copepods

Hiltunen Minna, Strandberg Ursula, Taipale Sami, Kankaala Paula. 2013.

Detailed stratification patterns and vertical layering of lipids in seal blubber - source of ecophysiological information

Strandberg Ursula. 2012.

Fatty acid composition of zooplankton in large boreal lakes

Hiltunen Minna, Strandberg Ursula, Taipale Sami, Kankaala Paula. 2012.

Vertical fatty acid profiles in blubber of a freshwater ringed seal - comparison to a marine relative

Strandberg U, Sipilä T, Koskela J, Kunnasranta M, Käkelä R. 2011. Journal of experimental marine biology and ecology. 407: 256-265

Fatty acid signature analysis confirms foraging resources of a globally endangered Mediterranean seabird species: calibration test and application to the wild

Käkelä R, Käkelä A, Martinez-Abrain A, Sarzo B, Louzao M, Gerique C, Villuendas E, Strandberg U, Furness RW, Oro D. 2010. Marine ecology: progress series. 398: 245-258

Aquatic Environment and Differentiation of Vibrissae: Comparison of Sinus Hair Systems of Ringed Seal, Otter and Pole Cat

Hyvärinen H., Palviainen A., Strandberg U., Holopainen I.J.. 2009. Brain Behav Evol. 74: 268-279

Stratification, composition and function of marine mammal blubber: the ecology of fatty acids in marine mammals

Ursula Strandberg, Anne Käkelä, Christian Lydersen, Kit M. Kovacs, Otto Grahl-Nielsen, Heikki Hyvärinen and Reijo Käkelä. 2008. Physiological and biochemical zoology. 81: 473-485

Vertical chemical profile of seal blubber

Strandberg U;Käkelä A;Lydersen C;Kovacs K;Sipilä T;Koskela J;Grahl-Nielsen O;Hyvärinen H;Käkelä R. 2005. Kala- ja riistaraportteja

Tarkenna hakuasi

Tutkimusryhmät

Water quality shapes the community structure of zoobenthos in rivers but only has a minor effect on the fatty acid composition of zoobenthos and salmonids

Environmental drivers alter PUFA content in littoral macroinvertebrate assemblages via changes in richness and abundance

Herbivorous cladoceran essential fatty acid and cholesterol content across a phosphorous and DOC gradients of boreal lakes-Importance of diet selection

Intra-specific correlations between fatty acids and morphological traits are consistent across fish species

Allochthony, fatty acid and mercury trends in muscle of Eurasian perch (Perca fluviatilis) along boreal environmental gradients

Browning-induced changes in trophic functioning of planktonic food webs in temperate and boreal lakes: insights from fatty acids

Combined effects of eutrophication and warming on polyunsaturated fatty acids in complex phytoplankton communities: A mesocosm experiment

Periphyton as a key diet source of essential fatty acids for macroinvertebrates across a nutrient and dissolved organic carbon gradient in boreal lakes

Lake browning impacts community structure and essential fatty acid content of littoral invertebrates in boreal lakes

Taxonomic, Temporal, and Spatial Variations in Zooplankton Fatty Acid Composition in Puget Sound, WA, USA

Warming Decreases Bioconversion of Polyunsaturated Fatty Acids in Chironomid Larvae Maintained on Cyanobacterium Microcystis

Fatty acid metabolism and modifications in Chironomus riparius

Increasing concentration of polyunsaturated fatty acids in browning boreal lakes is driven by nuisance alga Gonyostomum

Interspecific differences in omega-3 PUFA and contaminants explain the most variance in suggested Great Lakes' fish consumption when risks/benefits are considered together

Lake restoration influences nutritional quality of algae and consequently Daphnia biomass

Nutritional quality of littoral macroinvertebrates and pelagic zooplankton in subarctic lakes

Browning reduces the availability - but not the transfer - of essential fatty acids in temperate lakes

Population structure, life cycle, and trophic niche of the glacial relict amphipod, Gammaracanthus lacustris, in a large boreal lake

Terrestrial organic matter quantity or decomposition state does not compensate for its poor nutritional quality for Daphnia

Planktivorous vendace (Coregonus albula) utilise algae-derived fatty acids for biomass increase and lipid deposition

Trophic upgrading via the microbial food web may link terrestrial dissolved organic matter to Daphnia

Combining resource use assessment techniques reveals trade-offs in trophic specialization of polymorphic perch

Decrease of Population Divergence in Eurasian Perch (Perca fluviatilis) in Browning Waters: Role of Fatty Acids and Foraging Efficiency

Lake eutrophication and brownification downgrade availability and transfer of essential fatty acids for human consumption

Spatial variability of mercury and polyunsaturated fatty acids in the European perch (Perca fluviatilis) - Implications for risk-benefit analyses of fish consumption

Terrestrial carbohydrates support freshwater zooplankton during phytoplankton deficiency

Viljelty ahven olisi terveellistä

A Fatty Acid Based Bayesian Approach for Inferring Diet in Aquatic Consumers

Inferring phytoplankton community composition with a fatty acid mixing model

Selective transfer of polyunsaturated fatty acids from phytoplankton to planktivorous fish in large boreal lakes

Taxonomic identity and phytoplankton diet affect fatty acid composition of zooplankton in large lakes with differing dissolved organic carbon concentration

Diet-specific biomarkers show that high-quality phytoplankton fuels herbivorous zooplankton in large boreal lakes

Differing Daphnia magna assimilation efficiencies for terrestrial, bacterial, and algal carbon and fatty acids

Distinctive Lipid Composition of the Copepod Limnocalanus macrurus with a High Abundance of Polyunsaturated Fatty Acids

Retroconversion of docosapentaenoic acid (n-6): an alternative pathway for biosynthesis of arachidonic acid in Daphnia magna

Fatty acid composition as biomarkers of freshwater microalgae: analysis of 37 strains of microalgae in 22 genera and in seven classes

Seasonal, spatial and taxonomic differences in fatty acid composition of copepods

Detailed stratification patterns and vertical layering of lipids in seal blubber - source of ecophysiological information

Fatty acid composition of zooplankton in large boreal lakes

Vertical fatty acid profiles in blubber of a freshwater ringed seal - comparison to a marine relative

Fatty acid signature analysis confirms foraging resources of a globally endangered Mediterranean seabird species: calibration test and application to the wild

Aquatic Environment and Differentiation of Vibrissae: Comparison of Sinus Hair Systems of Ringed Seal, Otter and Pole Cat

Stratification, composition and function of marine mammal blubber: the ecology of fatty acids in marine mammals

Vertical chemical profile of seal blubber