English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. Dense blooms of filamentous diazotrophic cyanobacteriaare formed every summer in the Baltic Sea. These autotrophic organisms maybypass nitrogen limitation by performing nitrogen fixation, which alsogoverns surrounding organisms by increasing bioavailable nitrogen. Themagnitude of the nitrogen fixation is important to estimate from amanagement perspective since this might counteract eutrophication reductionmeasures. Here, a cyanobacteria life cycle model has been implemented forthe first time in a high-resolution 3D coupled physical and biogeochemicalmodel of the Baltic Sea, spanning the years 1850–2008. The explicitconsideration of life cycle dynamics and transitions significantly improvesthe representation of the cyanobacterial phenological patterns compared toearlier 3D modeling efforts. Now, the rapid increase and decrease incyanobacteria in the Baltic Sea are well captured, and the seasonal timing isin concert with observations. The current improvement also had a largeeffect on the nitrogen fixation load and is now in agreement with estimatesbased on in situ measurements. By performing four phosphorus sensitivity runs, wedemonstrate the importance of both organic and inorganic phosphorusavailability for historical cyanobacterial biomass estimates. The modelcombination can be used to continuously predict internal nitrogen loads vianitrogen fixation in Baltic Sea ecosystem management, which is of extraimportance in a future ocean with changed conditions for the filamentouscyanobacteria.

Modeling cyanobacteria life cycle dynamics and historical nitrogen fixation in the Baltic Proper