Author

Ole Sortkjær

Observed names: O. Sortkjaer, O. Sortkjær, Sortkjær, O., Sortkjær, Ole

Observed institutions: Aarhus University, Environmental Protection Agency

OpenAlex ID: A5022610797

Fish manipulation as a lake restoration tool in shallow, eutrophic, temperate lakes 2: threshold levels, long-term stability and conclusions

1990 · E. Jeppesen, J. P. Jensen, et al. · Hydrobiologia · 342

Fish manipulation as a lake restoration tool in shallow, eutrophic, temperate lakes 2: threshold levels, long-term stability and conclusions

1990 · E. Jeppesen, J. P. Jensen, et al. · Springer eBooks · 313

Perfluoroalkyl compounds in Danish wastewater treatment plants and aquatic environments

2007 · R. Bossi, J. Strand, et al. · Environment International · 258

Phytoplankton biomass reduction after planktivorous fish reduction in a shallow, eutrophic lake: a combined effect of reduced internal P-loading and increased zooplankton grazing

1990 · M. Søndergaard, E. Jeppesen, et al. · Hydrobiologia · 152

Fish manipulation as a lake restoration tool in shallow, eutrophic temperate lakes 1: cross-analysis of three Danish case-studies

1990 · E. Jeppesen, M. Søndergaard, et al. · Hydrobiologia · 121

Fish manipulation as a lake restoration tool in shallow, eutrophic temperate lakes 1: cross-analysis of three Danish case-studies

1990 · E. Jeppesen, M. Søndergaard, et al. · Springer eBooks · 113

Interactions between phytoplankton, zooplankton and fish in a shallow, hypertrophic lake: a study of phytoplankton collapses in Lake Søbygård, Denmark

1990 · Erik Jeppesen, Martin Søndergaard, et al. · Springer eBooks · 79

Interactions between sediment and water in a shallow and hypertrophic lake: a study on phytoplankton collapses in Lake Søbygård, Denmark

1990 · Martin Søndergaard, Erik Jeppesen, et al. · Springer eBooks · 51

Fish-induced changes in zooplankton grazing on phytoplankton and bacterioplankton: a long-term study in shallow hypertrophic Lake Søbygaard

1996 · Erik Jeppesen, Martin Søndergaard, et al. · Journal of Plankton Research · 49

Laboratory intercomparison study for the analysis of nonylphenol and octylphenol in river water

2007 · R. Loos, J. Wollgast, et al. · TrAC Trends in Analytical Chemistry · 48

Temperature-dependent and surface specific formaldehyde degradation in submerged biofilters

2006 · Lars-Flemming Pedersen, Per Bovbjerg Pedersen, et al. · Aquacultural Engineering · 46

Effect of high pH on zooplankton and nutrients in fishfree enclosures

1991 · Anne-Mette Hansen, Jesper Vagn Christensen, et al. · Archiv für Hydrobiologie · 28

Dose-dependent decomposition rate constants of hydrogen peroxide in small-scale bio filters

2005 · Lars-Flemming Pedersen, Per Bovbjerg Pedersen, et al. · Aquacultural Engineering · 25

Phytoplankton biomass reduction after planktivorous fish reduction in a shallow, eutrophic lake: a combined effect of reduced internal P-loading and increased zooplankton grazing

1990 · M. Søndergaard, E. Jeppesen, et al. · Springer eBooks · 10

Lake S�bygaard: a shallow lake in recovery after a reduction in phosphorus loading

1987 · M.Sc. S�ndergaard, E. Jeppesen, et al. · GeoJournal · 7

An Ontology-Based Approach for Enhancing Inland Water Information Retrieval from Heterogeneous Databases

2007 · M. Stjernholm, S. Poslad, et al. · Elsevier eBooks · 3

The EDEN-IW Ontology Model for Sharing Knowledge and Water Quality Data between Heterogeneous Databases

2004 · Michael Stjernholm, Stefan Poslad, et al. · EnviroInfo · 3

The fate of chemical additives and antimicrobial agents applied in Danish freshwater fish farms.

2007 · Morten Sichlau Bruun, Lars‐Flemming Pedersen, et al. · Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU) · 2

Optimering af behandlingseffekten i akvakultur: Minimering af forbrug og udledning af hjælpestoffer

2008 · Ole Sortkjær, N Henriksen, et al. · 1

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Screening for kloralkaner i sediment: Relevans for NOVANA

2010 · Martin Mørk Larsen, Morten Hjorth, et al.

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Screening for udvalgte pesticider i vandløb og grundvand: NOVANA screeningsundersøgelse

2009 · Rossana Bossi, Ole Sortkjær, et al.

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Ejstrupholm Dambrug - et modeldambrug under forsøgsordningen. Statusrapport for 2. måleår af moniteringsprojektet med væsentlige resultater fra første måleår

2008 · Lars M. Svendsen, Ole Sortkjær, et al.

List of Contributors

2007 · Bruce Bargmeyer, Anthony R. Cassandra, et al. · Elsevier eBooks

International Pilot Study for the Determination of Riverine Inputs of Polycyclic Aromatic Hydrocarbons (PAHs) to the Maritime Area on the Basis of a Harmonised Methodology: Final Report. OSPAR-Pilotstudie

2002 · Peter Heininger, Rebecca Schild, et al.

Works count: 35

Citation count: 1,651

H-index: 13

I10-index: 14