IGB Policy Brief

German federal elections: Researchers recommend a more sustainable water policy

Photo: Michel Roggo
Scientific highlights

Changes in shoaling behaviour due to fishing | Hydrological impacts of reforestation | Effects of short winters on phytoplankton

Photo: Jeanne M on Pixabay
Press release

Global warming: lakes lose too much oxygen

Photo: Lake Stechlin | © Michael Feierabend

Research for the future of our freshwaters

 Our profile

Our vision is the understanding of processes that shape the structure and functioning of water bodies and their biota. Our research findings help to predict responses to environmental change and to develop measures conductive to sustainable water management.

IGB is Germany’s largest and one of the leading international research centres for freshwaters. Here, hydrologists, biogeochemists, physicists, microbiologists, evolutionary ecologists, fish ecologists and fisheries biologists from all over the world are working under one roof.

News

insight

Topping-out ceremony for new biodiversity building

Today, the topping-out wreath was raised on the shell of the new joint biodiversity building of IGB and the Freie Universität Berlin (FUB). Attended and celebrated by about 70 guests on the Dahlem research campus. Of course, everyone was proud of the new building and looking forward to the closer collaboration between IGB and FUB.
insight

Schools of Sustainability at IGB

The Gerhard-Hauptmann-Gymnasium in Berlin-Friedrichshagen participates in the project "S.O.S. - Schools of Sustainability" of the Haus der Kulturen der Welt. Today they visited IGB.

Downloads

IGB Annual Research Report 2020

One year of freshwater research: recent findings related to aquatic biodiversity, global change and ecosystem services

Selected Publications

September 2021
Trends in Ecology and Evolution. - 36(2021)10, 885-888

Fisheries-induced changes of shoaling behaviour: mechanisms and potential consequences

Valerio Sbragaglia; Jolle W. Jolles; Marta Coll; Robert Arlinghaus

The authors outline key mechanisms by which fishing can change the shoaling tendency and collective behaviour of exploited species – an issue that is rarely considered and poorly understood. They highlight potential consequences for fish populations and food webs, and discuss possible repercussions for fisheries and conservation strategies.

September 2021
Hydrology and Earth System Sciences. - 25(2021)9, 4861–4886

Structural changes to forests during regeneration affect water flux partitioning, water ages and hydrological connectivity: insights from tracer-aided ecohydrological modelling

Aaron J. Neill; Christian Birkel; Marco P. Maneta; Doerthe Tetzlaff; Chris Soulsby

The authors used an isotope-based ecohydrologic model to assess the hydrological impacts of “re-wilding” in the Scottish Highlands by increasing Scots Pine forests for biodiversity conservation. They found forests will “use” more water through evapotranspiration which may initially decrease summer low flows and summer floods, though a natural hydrological regime will be restored after ~100 years.

September 2021
Global Change Biology. - 27(2021)19, 4615-4629

Earlier winter/spring runoff and snowmelt during warmer winters lead to lower summer chlorophyll-a in north temperate lakes

Allison R. Hrycik; Peter D. F. Isles; Rita Adrian; Matthew Albright,; Linda C. Bacon; Stella A. Berger; Ruchi Bhattacharya; Hans-Peter Grossart; Josef Hejzlar; Amy Lee Hetherington; Lesley B. Knoll; Alo Laas; Cory P. McDonald; Kellie Merrell; Jens C. Nejstgaard; Kirsten Nelson; Peeter Nõges; Andrew M. Paterson; Rachel M. Pilla; Dale M. Robertson; Lars G. Rudstam; James A. Rusak; Steven Sadro; Eugene A. Silow; Jason D. Stockwell; Huaxia Yao; Kiyoko Yokota; Donald C. Pierson

The authors investigated how ongoning changes in winter conditions may have consequences for annual phytoplankton biomass and production. They showed that earlier winter/spring runoff and snowmelt during warmer winters lead to lower summer chlorophyll-a in 41 north temperate lakes in Europe and North America.

September 2021
Science of the Total Environment. - 802(2021), Art. 149620

European fish-based assessment reveals high diversity of systems for determining ecological status of lakes

David Ritterbusch; Petr Blabolil; Jan Breine; Tibor Erős; Thomas Mehner; Mikko Olin; Graeme Peirson; Pietro Volta; Sandra Poikane

Developed in the context of the European Water Framework Directive, 24 fish-based ecological assessment systems for lakes across 21 countries were analyzed by a team of European fish experts. In total, 177 metrics are applied, addressing multiple anthropogenic pressures, predominantly lake eutrophication, hydromorphological alterations, fisheries and occurrence of non-natives.

August 2021
Frontiers in Marine Science. - 8(2021), Art. 628469

Effects of food provisioning on the daily ration and dive site use of Great Hammerhead Sharks, Sphyrna mokarran

Vital Heim; Félicie Dhellemmes; Matthew J. Smukall; Samuel H. Gruber; Tristan L. Guttridge

The study provides insights into how large-bodied marine predators react toward wildlife tourism associated provisioning and allows further discussion about daily energy uptake during provisioning dives, its potential impacts on the ecological role of the target species and associated management measures. 

Monitoring Stations

  • Water temperature
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  • Oxygen (rel./abs.)
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  • Wind speed
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Last measurement: No data available.
  • Water temperature
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  • Oxygen (rel./abs.)
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  • Wind speed
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Last measurement: No data available.
  • Water temperature
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  • Oxygen (rel./abs.)
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  • Wind speed
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Last measurement: No data available.

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