Matches in SemOpenAlex for { <https://semopenalex.org/work/W3118325629> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W3118325629 abstract "<p>Understanding how changes in limiting nutrient availability affect life in the oceans requires interdisciplinary efforts. Here we illustrate this with an example of silicon, one of the most common elements on land which bioavailable form, silicic acid (Si(OH)<sub>4</sub>), is a limiting nutrient for silicifying primary producers, such as diatoms.</p><p>&#160;Silicic acid concentrations in the pelagic polar and subpolar North Atlantic have declined by 1-2 &#956;M during spring pre-bloom conditions over the past 25 years. Many coastal areas of the North Atlantic region also face decreased relative availability of silicon due to increased riverine supply of nitrogen and phosphorus and stable or declining loads of silicon. Both declining silicic acid concentrations and declining silicon to nitrogen (Si:N) ratios limit the growth of diatoms, which are major primary producers contributing up to a quarter of global primary production.</p><p>To assess the effects of declining silicon availability on phytoplankton communities we conducted a mesocosm experiment manipulating Si:N ratios and copepod grazing pressure on phytoplankton communities from the Baltic Sea. Declining Si:N ratio affected not only diatom abundance and relative biomass but also their species composition and overall plankton diversity. Our results illustrate the importance of silicon in structuring community composition at the base of temperate marine food webs. Changes in silicic acid concentrations and Si:N ratios, therefore, may have far-reaching consequences on oceanic primary production and planktonic food webs.</p><p>The decline in silicon concentrations in polar and subpolar North Atlantic waters is attributed to natural multi-decadal variability but is likely amplified by reduced ocean mixing due to increased water temperatures, illustrating the need of international efforts to curb global climate change. The decline in Si:N ratios in coastal oceans also highlights the need for further reduction of nutrient pollution and improved river basin management. This may require interdisciplinary and international approaches to manage anthropogenic perturbations of the silicon cycle.</p>" @default.
- W3118325629 created "2021-01-18" @default.
- W3118325629 creator A5001733028 @default.
- W3118325629 creator A5020564736 @default.
- W3118325629 creator A5036464119 @default.
- W3118325629 creator A5048026422 @default.
- W3118325629 date "2020-03-23" @default.
- W3118325629 modified "2023-09-26" @default.
- W3118325629 title "Declining silica availability – a challenge in the North Atlantic region?" @default.
- W3118325629 doi "https://doi.org/10.5194/egusphere-egu2020-4793" @default.
- W3118325629 hasPublicationYear "2020" @default.
- W3118325629 type Work @default.
- W3118325629 sameAs 3118325629 @default.
- W3118325629 citedByCount "0" @default.
- W3118325629 crossrefType "posted-content" @default.
- W3118325629 hasAuthorship W3118325629A5001733028 @default.
- W3118325629 hasAuthorship W3118325629A5020564736 @default.
- W3118325629 hasAuthorship W3118325629A5036464119 @default.
- W3118325629 hasAuthorship W3118325629A5048026422 @default.
- W3118325629 hasBestOaLocation W31183256292 @default.
- W3118325629 hasConcept C108469399 @default.
- W3118325629 hasConcept C109931610 @default.
- W3118325629 hasConcept C111368507 @default.
- W3118325629 hasConcept C127313418 @default.
- W3118325629 hasConcept C142796444 @default.
- W3118325629 hasConcept C170859357 @default.
- W3118325629 hasConcept C18903297 @default.
- W3118325629 hasConcept C2776496254 @default.
- W3118325629 hasConcept C2778902744 @default.
- W3118325629 hasConcept C2780892065 @default.
- W3118325629 hasConcept C35066162 @default.
- W3118325629 hasConcept C39432304 @default.
- W3118325629 hasConcept C72958200 @default.
- W3118325629 hasConcept C77942228 @default.
- W3118325629 hasConcept C86803240 @default.
- W3118325629 hasConceptScore W3118325629C108469399 @default.
- W3118325629 hasConceptScore W3118325629C109931610 @default.
- W3118325629 hasConceptScore W3118325629C111368507 @default.
- W3118325629 hasConceptScore W3118325629C127313418 @default.
- W3118325629 hasConceptScore W3118325629C142796444 @default.
- W3118325629 hasConceptScore W3118325629C170859357 @default.
- W3118325629 hasConceptScore W3118325629C18903297 @default.
- W3118325629 hasConceptScore W3118325629C2776496254 @default.
- W3118325629 hasConceptScore W3118325629C2778902744 @default.
- W3118325629 hasConceptScore W3118325629C2780892065 @default.
- W3118325629 hasConceptScore W3118325629C35066162 @default.
- W3118325629 hasConceptScore W3118325629C39432304 @default.
- W3118325629 hasConceptScore W3118325629C72958200 @default.
- W3118325629 hasConceptScore W3118325629C77942228 @default.
- W3118325629 hasConceptScore W3118325629C86803240 @default.
- W3118325629 hasLocation W31183256291 @default.
- W3118325629 hasLocation W31183256292 @default.
- W3118325629 hasOpenAccess W3118325629 @default.
- W3118325629 hasPrimaryLocation W31183256291 @default.
- W3118325629 hasRelatedWork W12408855 @default.
- W3118325629 hasRelatedWork W12820701 @default.
- W3118325629 hasRelatedWork W15700969 @default.
- W3118325629 hasRelatedWork W17379112 @default.
- W3118325629 hasRelatedWork W18194596 @default.
- W3118325629 hasRelatedWork W18716557 @default.
- W3118325629 hasRelatedWork W19293094 @default.
- W3118325629 hasRelatedWork W2304744 @default.
- W3118325629 hasRelatedWork W3395840 @default.
- W3118325629 hasRelatedWork W8925296 @default.
- W3118325629 isParatext "false" @default.
- W3118325629 isRetracted "false" @default.
- W3118325629 magId "3118325629" @default.
- W3118325629 workType "article" @default.