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Chivall, David; M'Boule, Daniela; Sinke-Schoen, Daniëlle; Sinninghe Damsté, Jaap S; Schouten, Stefan; van der Meer, Marcel T J (2014): Impact of salinity and growth phase on alkenone distributions in coastal haptophytes. PANGAEA, https://doi.org/10.1594/PANGAEA.823603, Supplement to: Chivall, D et al. (2014): Impact of salinity and growth phase on alkenone distributions in coastal haptophytes. Organic Geochemistry, 67, 31-34, https://doi.org/10.1016/j.orggeochem.2013.12.002

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Abstract:
Batch cultures of Isochrysis galbana (strain CCMP 1323) and Chrysotila lamellosa (strain CCMP 1307) were grown at salinity ca. 10 to ca. 35 and the alkenone distributions determined for different growth phases. UK'37 values decreased slightly with salinity for C. lamellosa but were largely unaffected for I. galbana except during the decline phase. The values decreased with incubation time in both species. The proportion of C37:4, used as proxy for salinity, increased in both species at 0.16-0.20% per salinity unit, except during the stationary phase for I. galbana. C37:4 was much more abundant in C. lamellosa (30-44%) than in I. galbana (4-12%). Although our results suggest that salinity has a direct effect on alkenone distributions, growth phase and species composition will also have a marked impact, complicating the use of alkenone distributions as a proxy for salinity in the marine environment.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Laboratory code/labelLab labelvan der Meer, Marcel T J
2SpeciesSpeciesvan der Meer, Marcel T J
3StrainStrainvan der Meer, Marcel T J
4Temperature, waterTemp°Cvan der Meer, Marcel T J
5SalinitySalvan der Meer, Marcel T JConductivity meter VWR EC300start
6SalinitySalvan der Meer, Marcel T JConductivity meter VWR EC300end
7Incubation durationInc durdaysvan der Meer, Marcel T J
8Growth phaseGrowth phasevan der Meer, Marcel T JFlow cytometry Accuri C6
9Growth rateµ#/dayvan der Meer, Marcel T JFlow cytometry Accuri C6
10Alkenone, unsaturation index UK'37UK'37van der Meer, Marcel T JUltrasonic extracion, gas chromatography Agilent 6890
11Alkenone, unsaturation index UK37UK37van der Meer, Marcel T JUltrasonic extracion, gas chromatography Agilent 6890
12Alkenone, C37:4C37:4%van der Meer, Marcel T JUltrasonic extracion, gas chromatography Agilent 6890
13Alkenone, C37, per cellC37/cellpg/#van der Meer, Marcel T JFlow cytometry Accuri C6, ultrasonic extracion, gas chromatography Agilent 6890
14Alkenone, C37, per cell, per dayC37/cell/daypg/#/dayvan der Meer, Marcel T JFlow cytometry Accuri C6, ultrasonic extracion, gas chromatography Agilent 6890
Size:
1100 data points

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