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S. Hajdu · SciRah

Researcher profile · Semantic Scholar

S. Hajdu

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S. Hajdu — researcher profile on SciRah

h-index: 23
Works: 39
Citations: 2,750

Most-cited papers

Biovolumes and size-classes of phytoplankton in the Baltic Sea
I. Olenina, S. Hajdu, L. Edler, A. Andersson +10 more
2006700 citations
Semantic Scholar
Baltic Sea nitrogen fixation estimated from the summer increase in upper mixed layer total nitrogen
U. Larsson, S. Hajdu, J. Walve, R. Elmgren
2001313 citations
Semantic Scholar
Dimethyl sulfide in the Baltic Sea: Annual variability in relation to biological activity
C. Leck, U. Larsson, L. E. Bågander, S. Johansson +1 more
1990211 citations
Semantic Scholar
Succession and growth limitation of phytoplankton in the Gulf of Bothnia (Baltic Sea)
A. Andersson, S. Hajdu, P. Haecky, J. Kuparinen +1 more
1996158 citations
Semantic Scholar
Phytoplankton vertical distributions and composition in Baltic Sea cyanobacterial blooms
S. Hajdu, Helena Höglander, U. Larsson
2007129 citations
Semantic Scholar
Nitrogen fixation by cyanobacteria stimulates production in Baltic food webs
Agnes M. L. Karlson, J. Duberg, Nisha H. Motwani, Hedvig Hogfors +9 more
2015Ambio120 citations Open access
Semantic Scholar
Assessing impacts of invasive phytoplankton: the Baltic Sea case.
I. Olenina, N. Wasmund, S. Hajdu, I. Jurgensone +5 more
2010Marine Pollution Bulletin107 citations Open access
Semantic Scholar
Climate Driven Changes in Timing, Composition and Magnitude of the Baltic Sea Phytoplankton Spring Bloom
O. Hjerne, S. Hajdu, U. Larsson, A. Downing +1 more
2019Frontiers in Marine Science87 citations Open access
Semantic Scholar
Spreading and Establishment of the Potentially Toxic Dinoflagellate Prorocentrum minimum in the Baltic Sea
S. Hajdu, L. Edler, I. Olenina, B. Witek
200076 citations
Semantic Scholar
Vertical distribution and settling of spring phytoplankton in the offshore NW Baltic Sea proper
Helena Höglander, U. Larsson, S. Hajdu
200474 citations Open access
Semantic Scholar
Prorocentrum minimum (Dinophyceae) in the Baltic Sea: morphology, occurrence—a review
S. Hajdu, S. Pertola, H. Kuosa
200571 citations
Semantic Scholar
Particle-water partitioning of PCBs in the photic zone: a 25-month study in the open Baltic Sea.
A. Sobek, Ö. Gustafsson, S. Hajdu, U. Larsson
2004Environmental Science and Technology68 citations
Semantic Scholar
Do sediments from coastal sites accurately reflect time trends in water column phytoplankton? A test from Himmerfjärden Bay (Baltic Sea proper)
Thomas S. Bianchi, E. Engelhaupt, Brent A. McKee, S. Miles +4 more
200266 citations Open access
Semantic Scholar
Bloom-Forming Cyanobacteria Support Copepod Reproduction and Development in the Baltic Sea
Hedvig Hogfors, Nisha H. Motwani, S. Hajdu, R. El-Shehawy +5 more
2014PLoS ONE62 citations Open access
Semantic Scholar
Spring phytoplankton communities shaped by interannual weather variability and dispersal limitation: Mechanisms of climate change effects on key coastal primary producers
R. Klais, T. Tamminen, A. Kremp, K. Spilling +3 more
201362 citations Open access
Semantic Scholar
GYMNODINIUM COROLLARIUM SP. NOV. (DINOPHYCEAE)—A NEW COLD‐WATER DINOFLAGELLATE RESPONSIBLE FOR CYST SEDIMENTATION EVENTS IN THE BALTIC SEA 1
A. M. Sundström, A. Kremp, N. Daugbjerg, Ø. Moestrup +3 more
2009Journal of Phycology60 citations
Semantic Scholar
Evaluation of the collection efficiency of upper ocean sub‐photic‐layer sediment traps: a 24‐month in situ calibration in the open Baltic Sea using 234Th
Ö. Gustafsson, P. Andersson, P. Roos, Z. Kukulska +4 more
200449 citations
Semantic Scholar
Seasonal Dynamics of Chrysochromulina Species (Prymnesiophyceae) in a Coastal Area and a Nutrient-enriched Inlet of the Northern Baltic Proper
S. Hajdu, U. Larsson, Ø. Moestrup
199640 citations
Semantic Scholar
CYCLOTELLA HAKANSSONIAE WENDKER AND ITS RELATIONSHIP TO C. CASPIA GRUNOW AND OTHER SIMILAR BRACKISH WATER CYCLOTELLA SPECIES
H. Håkansson, S. Hajdu, P. Snoeijs, L. Loginova
199337 citations
Semantic Scholar
Phytoplankton community interactions and environmental sensitivity in coastal and offshore habitats
J. Griffiths, S. Hajdu, A. Downing, O. Hjerne +2 more
201635 citations
Semantic Scholar
Vertical and temporal distribution of the dinoflagellates Dinophysis acuminata and D. norvegica in the Baltic Sea
Heidi Hällfors, S. Hajdu, H. Kuosa, U. Larsson
201130 citations
Semantic Scholar
Planktonic production and carbon transfer efficiency along a north-south gradient in the Baltic sea
Kristin Dahlgren, A. Andersson, U. Larsson, S. Hajdu +1 more
201029 citations Open access
Semantic Scholar
Distribution Patterns of Isomorphic Cold-Water Dinoflagellates (Scrippsiella/Woloszynskia Complex) Causing ‘red tides’ in the Baltic Sea
A. Jaanus, S. Hajdu, S. Kaitala, A. Andersson +4 more
2005Hydrobiologia24 citations
Semantic Scholar
Effects of an extensive Prymnesium polylepis bloom on breeding eiders in the Baltic Sea
K. Larsson, S. Hajdu, M. Kilpi, R. Larsson +2 more
201420 citations Open access
Semantic Scholar
Phytoplankton of Baltic environmental gradients : observations on potentially toxic species
S. Hajdu
200220 citations
Semantic Scholar
Life-cycle stages of Dinophysis acuminata (Dinophyceae) in the Baltic Sea
S. Hajdu, U. Larsson
200617 citations
Semantic Scholar
Zooming in on size distribution patterns underlying species coexistence in Baltic Sea phytoplankton.
A. Downing, S. Hajdu, O. Hjerne, S. Otto +3 more
2014Ecology Letters16 citations
Semantic Scholar
The extensive bloom of alternate-stage Prymnesium polylepis (Haptophyta) in the Baltic Sea during autumn–spring 2007–2008
M. Majaneva, Janne-Markus Rintala, S. Hajdu, Seija Hällfors +6 more
201213 citations Open access
Semantic Scholar
Nucleic acid levels in copepods : dynamic response to phytoplankton blooms in the northern Baltic proper
E. Gorokhova, A. Edlund, S. Hajdu, E. Zhivotova
200713 citations Open access
Semantic Scholar
Shifts in the Baltic Sea summer phytoplankton communities in 1992-2006
A. Jaanus, A. Andersson, S. Hajdu, S. Huseby +4 more
200711 citations
Semantic Scholar
Responses of Phyto- and Zooplankton Communities to Prymnesium polylepis (Prymnesiales) Bloom in the Baltic Sea
E. Gorokhova, S. Hajdu, U. Larsson
2014PLoS ONE9 citations Open access
Semantic Scholar
Does female RNA content reflect viable egg production in copepods? A test with the Baltic copepod Acartia tonsa
Hedvig Hogfors, Towe Holmborn, S. Hajdu, E. Gorokhova
20117 citations
Semantic Scholar
Unusual phytoplankton event during winter-spring 2007-2008
S. Hajdu, Seija Hällfors, S. Gromisz, A-T Skjevik +8 more
20087 citations
Semantic Scholar
In-depth analysis of an alternate-stage Prymnesium polylepis (Haptophyta) bloom and long-term trends in abundance of Prymnesiales species in the Baltic Sea
S. Hajdu, E. Gorokhova, U. Larsson
20155 citations Open access
Semantic Scholar
Cyanobacteria biomass indicator
N. Wasmund, Susanne Busch, S. Gromisz, S. Hajdu +8 more
20124 citations
Semantic Scholar
Baltic Sea phytoplankton : Long-term variability of major groups and primary production in spring and summer related to nutrients and temperature
U. Larsson, S. Nyberg, A. Zakrisson, S. Hajdu +3 more
20151 citations
Semantic Scholar
Vertical distribution and composition of phytoplankton in Baltic Sea cyanobacterial blooms
S. Hajdu, Helena Höglander, U. Larsson
20041 citations
Semantic Scholar
Corrigendum: Climate Driven Changes in Timing, Composition and Magnitude of the Baltic Sea Phytoplankton Spring Bloom
O. Hjerne, S. Hajdu, U. Larsson, A. Downing +1 more
2020Frontiers in Marine Science0 citations Open access
Semantic Scholar
Food webs under changing biodiversity - Top-down control
M. Winder, E. Asterhag, M. Bernreuther, T. Blenckner +50 more
20160 citations
Semantic Scholar

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