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Dataset for: Cascading effects of freshwater salinization on plankton communities in the Sierra Nevada (Dataset)
| Content Provider | Dryad |
|---|---|
| Author | Moffett, Emma Baker, Henry Bonadonna, Christine Shurin, Jonathan Symons, Celia |
| Abstract | Runoff containing road salt (sodium chloride, NaCl) causes the salinization of inland freshwaters, with potentially severe impacts on aquatic species. We performed a mesocosm experiment to test the effects of salinization on plankton community structure in an oligotrophic mountain lake with a limited history of elevated salt concentrations. We exposed plankton communities to a gradient of 30 salt concentrations ranging from 1-2900 Cl– mg L-1 for six weeks. Adding salt increased zooplankton biomass at concentrations <500 mg Cl– L-1 while reducing phytoplankton biomass. Zooplankton biomass declined precipitously at higher concentrations, with phytoplankton biomass showing a mirror image increase. The initial increase in zooplankton biomass with salt addition suggests that zooplankton are salt-limited at low ionic concentrations. Additionally, the inverse response of zooplankton and phytoplankton suggests that salinity mainly affects phytoplankton biomass via changes in top-down regulation by grazers. |
| File Size | 701209 |
| File Format | HTM / HTML |
| ISSN | 23782242 |
| DOI | 10.7280/D1W39T |
| Alternate Webpage(s) | https://datadryad.org/stash/downloads/file_stream/458373 |
| Alternate Webpage(s) | https://datadryad.org/stash/downloads/file_stream/467711 |
| Alternate Webpage(s) | https://datadryad.org/stash/downloads/file_stream/467712 |
| Language | English |
| Publisher Date | 2020-10-29 |
| Access Restriction | Open |
| Subject Keyword | Chloride Freshwater Plankton Freshwater Zooplankton Sierra Mountain Lakes Salt Limitation |
| Content Type | Text |
| Resource Type | Data Set |
| Subject | Aquatic Science Oceanography |
