Evidence map›Paper›PMID 38967897›Full record

ArticleAmbio2025

Temperatures and hypolimnetic oxygen in German lakes: Observations, future trends and adaptation potential.

Robert Schwefel, Lipa G T Nkwalale, Sylvia Jordan, Karsten Rinke, Michael Hupfer

Abstract read
In one paragraph

Article in Ambio, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Robert SchwefelDepartment of Ecohydrology and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 301, 12587, Berlin, Germany. robert.schwefel@igb-berlin.de.ORCID http://orcid.org/0000-0003-1610-4181
Lipa G T NkwalaleDepartment of Lake Research, Helmholtz Centre for Environmental Research - UFZ, Brückstr. 3a, 39114, Magdeburg, Germany.ORCID http://orcid.org/0009-0004-3832-3056
Sylvia JordanDepartment of Ecohydrology and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 301, 12587, Berlin, Germany.
Karsten RinkeDepartment of Lake Research, Helmholtz Centre for Environmental Research - UFZ, Brückstr. 3a, 39114, Magdeburg, Germany.ORCID http://orcid.org/0000-0003-0864-6722
Michael HupferDepartment of Ecohydrology and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 301, 12587, Berlin, Germany.ORCID http://orcid.org/0000-0002-8878-1045

Funding

Deutsche Forschungsgemeinschaft DFG RI2040/4-1German Working Group on water issues of the Federal States and the Federal Government (LAWA) K 4.20Horizon 2020 Framework Programme 956623
6 · The paper itself

Abstract

We investigated trends in temperature, stratification, and hypolimnetic oxygen concentration of German lakes under climate change using observational data and hydrodynamic modelling. Observations from 46 lakes revealed that annually averaged surface temperatures increased by + 0.5 °C between 1990 and 2020 while bottom temperatures remained almost constant. Modelling of 12 lakes predicted further increases in surface temperatures by 0.3 °C/decade until the year 2099 in the most pessimistic emission scenario RCP 8.5 (RCP 4.5: + 0.18 °C/decade; RCP 2.6: + 0.04 °C/decade). Again, bottom temperatures increased much less while summer stratification extended by up to 38 days. Using a simplified oxygen model, we showed that hypolimnetic oxygen concentrations decreased by 0.7-1.9 mg L

Indexed as

Climate ChangeLakesOxygenTemperatureGermanyOxygenClimate changeLake eutrophicationLake stratificationLake temperaturesNumerical modellingOxygen

Identifiers

PMID38967897
PMCPMC11780045

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.