Articles | Volume 11, issue 21
Biogeosciences, 11, 6147–6157, 2014
https://doi.org/10.5194/bg-11-6147-2014
Biogeosciences, 11, 6147–6157, 2014
https://doi.org/10.5194/bg-11-6147-2014
Research article
13 Nov 2014
Research article | 13 Nov 2014

The fractionation of nitrogen and oxygen isotopes in macroalgae during the assimilation of nitrate

P. K. Swart et al.

Viewed

Total article views: 2,493 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,224 1,191 78 2,493 56 66
  • HTML: 1,224
  • PDF: 1,191
  • XML: 78
  • Total: 2,493
  • BibTeX: 56
  • EndNote: 66
Views and downloads (calculated since 16 May 2014)
Cumulative views and downloads (calculated since 16 May 2014)

Cited

Saved (final revised paper)

Saved (preprint)

Latest update: 02 Jul 2022
Download
Short summary
The ratio of nitrogen-15 to nitrogen-14 of macroalgae has been termed the DNA of sewage. Higher amounts of N-15 have been suggested to indicate the influence of sewage-derived N. But what exactly does the ratio of 15N/14N record? We found that the nitrogen isotopic ratio was dependent upon not only the value in the water but also its concentration of nitrate. At low concentration there was little fractionation, but at higher values the uptake by algae left more of the N-15 in the water.
Altmetrics
Final-revised paper
Preprint