Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Jaana Hietala"'
Autor:
Jaana Hietala, Sami Vesala, Tommi Tapani Malinen, Martti Rask, Mikko Olin, Jukka Ruuhijärvi, Heikki Peltonen
Fish community responses to long-term mass removal of planktivorous fish from eutrophicated Lake Tuusulanjärvi were examined during 1996–2018 by gill net test fishing, hydroacoustics with simultaneous trawling, virtual population analysis (VPA) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dee123dfe2a246ced12800b3add8bfef
http://hdl.handle.net/10138/333468
http://hdl.handle.net/10138/333468
Effects of nutrients and fish on periphyton and plant biomass across a European latitudinal gradient
Autor:
Lars-Anders Hansson, Mikael Gyllström, Eloy Bécares, Wouter van de Bund, D. M. Balayla, Jaana Hietala, Ellen Van Donk, Brian Moss, Maria Rosa Miracle, Margarita Fernández-Aláez, Joan Gomà, Susana Romo, Timo Kairesalo, Annika Ståhl-Delbanco, Debbie Stephen, Camino Fernández-Aláez
Publikováno v:
Aquatic Ecology, 42(4), 561-574. Springer Netherlands
Replicated, factorial mesocosm experiments were conducted across Europe to study the effects of nutrient enrichment and fish density on macrophytes and on periphyton chlorophyll a (chl-a) with regard to latitude. Periphyton chl-a densities and plant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce4b32d2dfccf3ee884d3319edd0406c
https://hdl.handle.net/20.500.11755/37405b51-9498-472f-af07-2548d03b4667
https://hdl.handle.net/20.500.11755/37405b51-9498-472f-af07-2548d03b4667
Publikováno v:
Cancer Epidemiology, Biomarkers & Prevention. 15:146-149
Tobacco smoking is one of the strongest risk factors not only for lung cancer but also for cancers of the upper gastrointestinal tract. Acetaldehyde has been shown to dissolve into the saliva during smoking and to be a local carcinogen in the human u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25419fb8f024c5fcd56e8123ae1c5b2d
https://doi.org/10.1158/1055-9965.epi-05-0248
https://doi.org/10.1158/1055-9965.epi-05-0248
Publikováno v:
University of Helsinki
SUMMARY 1. High biomass of macrophytes is considered important in the maintenance of a clear- water state in shallow eutrophic lakes. Therefore, rehabilitation and protection of aquatic vegetation is crucial to the management of shallow lakes. 2. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea58e478bf2cc7b1c1bdaccc04808587
https://doi.org/10.1111/j.1365-2427.2004.01303.x
https://doi.org/10.1111/j.1365-2427.2004.01303.x
Autor:
Joan Gomà, M. Valentín, Eduardo Vicente, Annika Ståhl-Delbanco, Margarita Fernández-Aláez, T. Alfonso, María-José Villena, Susana Romo, D. Stephen, Marie Svensson, Juan Rueda, W. J. Van de Bund, Timo Kairesalo, Jaana Hietala, Mikael Gyllström, Pedro Escobar García, Camino Fernández-Aláez, S. E. Collings, D. M. Balayla, Brian Moss, Kirsi Vakkilainen, Eloy Bécares, Lars-Anders Hansson, E. Van Donk, Carmen Ferriol, Maria Rosa Miracle
Publikováno v:
Freshwater Biology, 49(12), 1608-1618. Wiley-Blackwell
University of Helsinki
Freshwater Biology; 49(12), pp 1608-1618 (2004)
University of Helsinki
Freshwater Biology; 49(12), pp 1608-1618 (2004)
1. The impacts of nutrients (phosphorus and nitrogen) and planktivorous fish on phytoplankton composition and biomass were studied in six shallow, macrophyte-dominated lakes across Europe using mesocosm experiments. 2. Phytoplankton biomass was more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f76982cd02e97903b5ab5fa31244f7b2
https://doi.org/10.1111/j.1365-2427.2004.01307.x
https://doi.org/10.1111/j.1365-2427.2004.01307.x
Publikováno v:
International Journal of Pharmaceutics. 189:179-185
Many functions of the human body vary considerably during a day. These variations can lead to changes in drug plasma concentrations. In the study on healthy volunteers described here it was determined whether ibuprofen plasma levels following single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68f04131a2cc45038172b39865c1fe46
https://doi.org/10.1016/s0378-5173(99)00250-1
https://doi.org/10.1016/s0378-5173(99)00250-1
Publikováno v:
Journal of Plankton Research. 21:1553-1564
We investigated experimentally how resources were allocated to reproduction in Daphnia pulex and Daphnia longispina when varying levels of toxic Microcystis were added to higher quality food. We used multiple regression models to estimate mean offspr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7226e103d0d23d73b6057d54a0739fdf
https://doi.org/10.1093/plankt/21.8.1553
https://doi.org/10.1093/plankt/21.8.1553
Publikováno v:
Freshwater Biology. 37:635-647
1. We studied the effects of toxic cyanobacteria, Microcystis aeruginosa, on Daphnia pulex populations. The experiment was performed at room temperature in laboratory microcosms to which we added toxic Microcystis in two pulses. Green alga, Scenedesm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8bab3b73ad2b9af252019598ce6fc5
https://doi.org/10.1046/j.1365-2427.1997.00189.x
https://doi.org/10.1046/j.1365-2427.1997.00189.x
Publikováno v:
Freshwater Biology. 37:299-306
1. We studied the effects of both acute and chronic exposure of Daphnia pulex to toxic Microcystis aeruginosa. We focused on the effects of Daphnia genotype and temperature (19 and 24 °C). 2. The study revealed variation among ten Daphnia pulex clon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2c352e6846bdfab4433191642af0c59
https://doi.org/10.1046/j.1365-2427.1997.d01-555.x
https://doi.org/10.1046/j.1365-2427.1997.d01-555.x
Publikováno v:
Journal of Plankton Research. 19:917-926
We examined how the amount of food of good quality, Scenedcsmus obtusiusculus, influ- enced the toxic effects of the cyanobacterium Microcystis acruginosa on Daphnia pulex in a 21 day life table experiment. Our results show that all hie history trait
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3c75704c024e69268102d53dc52f052
https://doi.org/10.1093/plankt/19.7.917
https://doi.org/10.1093/plankt/19.7.917