Description: Sandy streambed sediments that had been exposed to either intense drying (90-day without rainfall) or bedform migration (periodically moving ripples) were placed in 250 µm mesh bags to the Spree River in Northeastern Germany on October 22, 2018, to initiate the recovery process from drying or migration stress. Subsamples from the recovering sediments were collected at eight dates within eight months and taken to the laboratory for further analysis. Community respiration and Net Community Production of sediment associated biofilms were measured as dissolved oxygen concentrations from sediment pore water in inundated microcosms. The aim of the experiment was to observe the long-term recovery of microbial communities in lowland streams from drying and bedform migration and to identify if stress effects persisted as legacy after the stress period.
Global identifier:
Doi(
"10.1594/PANGAEA.941236",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Community respiration, oxygen, per unit sediment dry mass",
"DATE/TIME",
"Gross primary production, oxygen, per unit sediment dry mass",
"Net community production, oxygen, per unit sediment dry mass",
"Time in days",
"Treatment",
],
methods: [
"Calculated as Net Community Production minus Community Respiration, standardized to 20°C, Q10 factor of 2 (Winkler et al. 1996)",
"O2-meter (Oxy10) with oxygen sensor NTH-PSt1 (PreSens), measured in dark, standardized to 20°C, Q10 factor of 2 (Winkler et al. 1996)",
"O2-meter (Oxy10) with oxygen sensor NTH-PSt1 (PreSens), measured in light, standardized to 20°C, Q10 factor of 2 (Winkler et al. 1996)",
],
},
)
Tags: Fluss ? Deutschland ? Biofilm ? Dürre ? Sediment ? Wasser ? Sedimenttransport ? Niederschlag ? Stoffwechsel ? microbial abundance ? microbial community ? ripples ? streambed metabolism ?
Region: Döbbrick
Bounding boxes: 14.333333° .. 14.333333° x 51.833333° .. 51.833333° 14.3406° .. 14.3406° x 51.81947° .. 51.81947°
License: cc-by/4.0
Language: Englisch/English
Issued: 2023-04-26
Modified: 2023-04-26
Time ranges: 2018-10-22 - 2019-06-03
Accessed 1 times.