Renn Schipper
Kent State University
| Subject Areas: | Biogeochemistry |
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ABSTRACT:
Nitrogen (N) is a commonly limiting nutrient in stream ecosystems due to high demand by organisms, and as a result, many studies have focused on how limited N availability influences microbial nutrient acquisition. However, N acquisition is likely influenced by the availability of other nutrients, such as phosphorus (P) or iron (Fe), either directly or indirectly. We measured the response of multiple different N acquisition strategies to varying N, P, and Fe conditions in 32 flow-through stream mesocosms. This data archive includes (1) algal responses measured as both chlorophyll concentrations and growth rates and (2) nitrogen acquisition rates measured as nitrogen fixation, ammonium uptake and regeneration, and extracellular enzyme activity.
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Created: April 7, 2026, 7:19 p.m.
Authors: Schipper, Renn · Akinnifesi, Olufemi · Souza, Rafaella · Pope, Talia · Costello, David
ABSTRACT:
Nitrogen (N) is a commonly limiting nutrient in stream ecosystems due to high demand by organisms, and as a result, many studies have focused on how limited N availability influences microbial nutrient acquisition. However, N acquisition is likely influenced by the availability of other nutrients, such as phosphorus (P) or iron (Fe), either directly or indirectly. We measured the response of multiple different N acquisition strategies to varying N, P, and Fe conditions in 32 flow-through stream mesocosms. This data archive includes (1) algal responses measured as both chlorophyll concentrations and growth rates and (2) nitrogen acquisition rates measured as nitrogen fixation, ammonium uptake and regeneration, and extracellular enzyme activity.