User profiles for Michael Hupfer

Michael Hupfer

Leibniz Institute of Freshwater Ecology and Inland Fisheries
Verified email at igb-berlin.de
Cited by 6805

Oxygen controls the phosphorus release from lake sediments–a long‐lasting paradigm in limnology

M Hupfer, J Lewandowski - International Review of …, 2008 - Wiley Online Library
The pioneer works of Einsele, Mortimer, and Ohle on the linking between phosphorus (P)
and iron (Fe) cycles seven decades ago created the theoretical basis for a long‐standing …

Transformation of phosphorus species in settling seston and during early sediment diagenesis

M Hupfer, R Gächter, R Giovanoli - Aquatic Sciences, 1995 - Springer
Sequential P extraction was combined with electron microscop and X-ray spectroscopy to
characterise various P species and to study their transformation in settling seston and in recent …

[HTML][HTML] Restoration of submerged vegetation in shallow eutrophic lakes–A guideline and state of the art in Germany

S Hilt, EM Gross, M Hupfer, H Morscheid, J Mählmann… - Limnologica, 2006 - Elsevier
One of the most serious problems caused by eutrophication of shallow lakes is the disappearance
of submerged macrophytes and the switch to a turbid, phytoplankton-dominated state. …

[HTML][HTML] The occurrence, identification and environmental relevance of vivianite in waterlogged soils and aquatic sediments

M Rothe, A Kleeberg, M Hupfer - Earth-Science Reviews, 2016 - Elsevier
In this article, we review the nature, occurrence and environmental relevance of the authigenic
ferrous iron phosphate mineral vivianite (Fe 3 (PO 4 ) 2 ·8H 2 O) in waterlogged soils and …

Phosphorus in groundwater discharge–A potential source for lake eutrophication

K Meinikmann, M Hupfer, J Lewandowski - Journal of Hydrology, 2015 - Elsevier
Lake eutrophication has long been mainly associated with phosphorus (P) inputs from overland
flow. The present study gives evidence that also groundwater can carry significant loads …

Polyphosphate in lake sediments: 31P NMR spectroscopy as a tool for its identification

M Hupfer, R Gtichter… - Limnology and …, 1995 - Wiley Online Library
Variations in the nonreactive P content of lake sediments as a consequence of changing redox
conditions suggest that microorganisms may contribute to uptake and release of P. In this …

Long term effects of phosphorus precipitations with alum in hypereutrophic Lake Süsser See (Germany)

J Lewandowski, I Schauser, M Hupfer - Water Research, 2003 - Elsevier
Precipitation and inactivation of phosphorus (P) by the addition of aluminum (Al) is a widely
applied lake restoration measure. Many studies about short-term effects are reported, but …

[HTML][HTML] Longevity and effectiveness of aluminum addition to reduce sediment phosphorus release and restore lake water quality

BJ Huser, S Egemose, H Harper, M Hupfer, H Jensen… - Water research, 2016 - Elsevier
114 lakes treated with aluminum (Al) salts to reduce internal phosphorus (P) loading were
analyzed to identify factors driving longevity of post-treatment water quality improvements. …

Tube‐dwelling invertebrates: tiny ecosystem engineers have large effects in lake ecosystems

…, A Lorke, O Dellwig, A Brand, M Hupfer… - Ecological …, 2015 - Wiley Online Library
There is ample evidence that tube‐dwelling invertebrates such as chironomids significantly
alter multiple important ecosystem functions, particularly in shallow lakes. Chironomids …

Origin and diagenesis of polyphosphate in lake sediments: A 31PߚNMR study

M Hupfer, B Ruübe, P Schmieder - Limnology and …, 2004 - Wiley Online Library
Polyphosphate (polyߚP) was detected with the use of 31 P nuclear magnetic resonance (NMR)
spectroscopy in sediments from a large variety of lakes with different trophic state and …