Long-term decline of whitefish ( Coregonus lavaretus ) population in the boreal lake Pyhäjärvi, southwest Finland, relative to simultaneous abiotic and biotic changes
Sarvala, Jouko, Helminen, Harri, Karjalainen, Juha, Marjomäki, Timo J., Forsman, Tero, Anttila, Lauri
Published in International Journal of Limnology (02.09.2024)
Published in International Journal of Limnology (02.09.2024)
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Journal Article
Occurrence of Two-Year Cyclicity, “Saw-Blade Fluctuation”, in Vendace Populations in Finland
Marjomäki, Timo J., Auvinen, Heikki, Helminen, Harri, Huusko, Ari, Huuskonen, Hannu, Hyvärinen, Pekka, Jurvelius, Juha, Sarvala, Jouko, Valkeajärvi, Pentti, Viljanen, Markku, Karjalainen, Juha
Published in Annales zoologici fennici (06.09.2021)
Published in Annales zoologici fennici (06.09.2021)
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Vendace populations on the life table: between-lake variation and the association between early life and mature survival and growth
Marjomäki, Timo J., Auvinen, Heikki, Helminen, Harri, Huusko, Ari, Huuskonen, Hannu, Hyvärinen, Pekka, Jurvelius, Juha, Karels, Aarno, Sarvala, Jouko, Valkeajärvi, Pentti, Karjalainen, Juha
Published in International Journal of Limnology (09.08.2024)
Published in International Journal of Limnology (09.08.2024)
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Journal Article
Climate-related challenges in long-term management of Säkylän Pyhäjärvi (SW Finland)
Ventelä, Anne-Mari, Kirkkala, Teija, Lendasse, Amaury, Tarvainen, Marjo, Helminen, Harri, Sarvala, Jouko
Published in Hydrobiologia (01.02.2011)
Published in Hydrobiologia (01.02.2011)
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Conference Proceeding
Climate-related challenges in long-term management of Saekylaen Pyhaejaervi (SW Finland)
Ventelae, Anne-Mari, Kirkkala, Teija, Lendasse, Amaury, Tarvainen, Marjo, Helminen, Harri, Sarvala, Jouko
Published in Hydrobiologia (01.02.2011)
Published in Hydrobiologia (01.02.2011)
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Journal Article
Impacts of nutrient enrichment and sediment on phytoplankton community structure in the northern Baltic Sea
Lagus, Annika, Suomela, Janne, Helminen, Harri, Sipura, Jaana
Published in Hydrobiologia (01.03.2007)
Published in Hydrobiologia (01.03.2007)
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Journal Article
Long-term management of Pyhäjärvi (southwest Finland): eutrophication, restoration - recovery?
Ventelä, Anne-Mari, Tarvainen, Marjo, Helminen, Harri, Sarvala, Jouko
Published in Lake and reservoir management (01.12.2007)
Published in Lake and reservoir management (01.12.2007)
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Journal Article
Effect of nutrient enrichment on bacterioplankton biomass and community composition in mesocosms in the Archipelago Sea, northern Baltic
Sipura, Jaana, Haukka, Kaisa, Helminen, Harri, Lagus, Annika, Suomela, Janne, Sivonen, Kaarina
Published in Journal of plankton research (01.12.2005)
Published in Journal of plankton research (01.12.2005)
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Journal Article
Nutrient release and resuspension generated by ruffe (Gymnocephalus cernuus) and chironomids
TARVAINEN, MARJO, VENTELÄ, ANNE-MARI, HELMINEN, HARRI, SARVALA, JOUKO
Published in Freshwater biology (01.03.2005)
Published in Freshwater biology (01.03.2005)
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Journal Article
Phytoplankton community responses to nutrient and iron enrichment under different nitrogen to phosphorus ratios in the northern Baltic Sea
Vuorio, Kristiina, Lagus, Annika, Lehtimäki, Jaana M., Suomela, Janne, Helminen, Harri
Published in Journal of experimental marine biology and ecology (08.08.2005)
Published in Journal of experimental marine biology and ecology (08.08.2005)
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Relations between planktivorous fish abundance, zooplankton and phytoplankton in three lakes of differing productivity
SARVALA, J, HELMINEN, H, SAARIKARI, V, SALONEN, S, VUORIO, K
Published in Hydrobiologia (01.01.1997)
Published in Hydrobiologia (01.01.1997)
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