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Now showing items 1-10 of 17
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Increased concentrations of dissolved organic carbon (DOC), often labelled “browning”, is a current trend in northern, particularly boreal, freshwaters. The browning has been attributed to the recent reduction in sulphate ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
1. Many northern freshwaters are currently experiencing a pronounced ‘browning’, that is an increase in terrestrially derived dissolved organic carbon (DOC). Chromophoric DOC offers protection against photodamage by absorbing ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Concentrations of dissolved organic matter (DOM) are increasing in a large number of lakes across the Northern hemisphere. This browning serves a dual role for biota by protecting against harmful ultraviolet radiation, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Boreal lakes are important net sources of greenhouse gases (GHGs). In this study we analyzed concentrations of CO2, CH4, N2O as well as O2, N2 and argon (Ar) from the epilimnion of 75 boreal lakes covering gradients in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Phytoplankton may respond both to elevated temperatures and reduced nutrients by changing their cellular stoichiometry and cell sizes. Since increased temperatures often cause increased thermal stratification and reduced ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Temperature and nutrients are key factors affecting the growth, cell size, and physiology of marine phytoplankton. In the ocean, temperature and nutrient availability often co-vary because temperature drives vertical ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
There is growing empirical and theoretical evidence for a positive relationship between the nitrogen (N)‐to‐phosphorus (P) ratio of phytoplankton and temperature. However, few have tested how the optimal supply N:P ratio; ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In this study, we analyzed long‐term trends in calcium (Ca) concentrations for 70 Norwegian lakes spanning a broad geographical range and for a wide range of ambient drivers. A striking decline in Ca concentrations was ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The current trend of increasing input of terrestrially derived dissolved organic carbon (DOC) to boreal freshwater systems is causing increased levels of carbon dioxide (CO 2 ) supersaturation and degassing. Phosphorus (P) ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Covariation in species richness and community structure across taxonomical groups (cross‐taxon congruence) has practical consequences for the identification of biodiversity surrogates and proxies, as well as theoretical ...