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Hamer, Jorin; Matthiessen, Birte; Pulina, Silvia; Hattich, Giannina S I (2022): Long term experiment using a semi-continuous batch cycle system with the phytoplankton species Chaetoceros affinis and Emiliania huxleyi [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940796, In: Hamer, J et al. (2022): Trait measurements and long-term experiment on maintenance of intraspecific diversity using genotypes of phytoplankton species Chaetoceros affinis and Emiliania huxleyi [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.940800

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Abstract:
Long term experiment using a semi-continuous batch cycle system with the phytoplankton species Chaetoceros affinis and Emiliania huxleyi each consisting of 9 genotypes (http://roscoff-culture-collection.org/; Emiliania huxleyi: GC22: RCC6383, C42: RCC6376, C41: RCC6375, C47: RCC4546, C96: RCC6381, C91: RCC6380, C35: RCC6374, C30: RCC6371, C48: RCC6377, Chaetoceros affinis: B63: RCC6347, B67: RCC6348, B68: RCC6349, B74: RCC6350). Cultivation of species separately in mono-cultures and together in mix-cultures at three different nutrient regimes (10N:1P, 20N:1P, and 30N:1P) with increasing nitrate concentration over 91 days. Nutrient concentrations were 8.60 ± 0.62, 19.08 ± 0.32, and 29.36 ± 0.47 µmol L−1 nitrate and 0.93 ± 0.09 phosphate. Silicate concentrations were aligned to reflect a 4:1 N:Si ratio. Transfer of part of the cells into bottles with new nutrients every 7 days at fixed batch cycle length and after 7,4, and 10 days in a recurring fashion at variable batch cycle length. Measurements of cell density and cell volume at the end of every batch cycle and cell density or fluorescence daily during the third batch cycle. Nitrate, phosphate, and silicate measurements in mix-cultures at variable batch cycle length at the end of the first (7 days), second (4 days), and third (10 days) batch cycle. Daily nutrient measurements in mix-cultures from day 4 to day 7 at batch cycle seven.
Keyword(s):
cell size; Chaetoceros affinis; Competition; Emiliania huxleyi; genotype coexistence; nutrient fluctuations; Phytoplankton; trait variability; Vmax
Funding:
German Research Foundation (DFG), grant/award no. MA5058/2-2
Coverage:
Date/Time Start: 2019-05-27T00:00:00 * Date/Time End: 2019-08-19T00:00:00
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1ExperimentExpHamer, Jorintype
2DATE/TIMEDate/TimeHamer, JorinGeocode – of experiment
3Experiment dayExp daydayHamer, Jorinof batch cycle
4Number of batchBatch no#Hamer, Jorinbatch cycle
5Bottle numberBottle#Hamer, JorinBottles 4,47,56, and 58 were excluded due to contamination
6Treatment: nutrientsT:nutrientsHamer, JorinNutrient regime
7TreatmentTreatHamer, JorinBatch cycle length
8TreatmentTreatHamer, JorinCulture
9Emiliania huxleyiE. huxleyi#/mlHamer, JorinMicroscopy (Zeiss Axiovert 200 and Axio Observer A1)
10Chaetoceros affinisC. affinis#/mlHamer, JorinMicroscopy (Zeiss Axiovert 200 and Axio Observer A1)
11FluorescenceFluorescenceHamer, JorinFluorometer, Turner Designs, 10-AU
12Emiliania huxleyi, cell biovolumeE. huxleyi cell biovolµm3Hamer, JorinMicroscopy (Zeiss Axiovert 200 and Axio Observer A1)
13Chaetoceros affinis, cell biovolumeC. affinis cell biovolµm3Hamer, JorinMicroscopy (Zeiss Axiovert 200 and Axio Observer A1)
14SilicateSi(OH)4µmol/lHamer, JorinAutoanalyzer (Thermo Scientific Flash)
15Phosphate[PO4]3-µmol/lHamer, JorinAutoanalyzer (Thermo Scientific Flash)
16Nitrate[NO3]-µmol/lHamer, JorinAutoanalyzer (Thermo Scientific Flash)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
18078 data points

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