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Data Publisher for Earth & Environmental Science

Steinberg, Ronny: Light adaptation patterns in non-native Vaucheria-turfs (Xanthophyceae) on a tidal sedimentary coast - pigment data [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971807 (dataset in review)

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Abstract:
In this study, measurements of the light curve were taken to assess photosynthetic competence in Vaucheria algae. The Chl a fluorescence of photosystem II (PSII) was measured using a pulse amplitude modulated fluorometer. The maximum quantum yield (Fv/Fm) and electron transport rates (ETR) were determined in dark-adapted samples. The light curves were measured by varying the light intensity in 10 steps and recording the effective quantum yield. The data were then analysed using a model known as the photosynthetic light response curve, which describes the relationship between ETR and light intensity. The model assumes that ETR increases linearly with light intensity at low levels, but then slows down and approaches a maximum value (ETRmax) at higher light intensities. The half-saturation constant (k) represents the light intensity at which the ETR is half its maximum. These parameters, ETRmax and k, play a crucial role in understanding the photosynthetic properties of algae under different light conditions. The data were analysed using nonlinear least squares estimates of the parameters in R Studio.
Keyword(s):
Light curves; non-native species; tidal flats; Vaucheria sp.; Xanthophyceae
Related to:
Steinberg, Ronny: Light adaptation patterns in non-native Vaucheria-turfs (Xanthophyceae) on a tidal sedimentary coast - light curve data [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979243
Coverage:
Median Latitude: 54.992865 * Median Longitude: 8.408960 * South-bound Latitude: 54.957830 * West-bound Longitude: 8.381070 * North-bound Latitude: 55.027900 * East-bound Longitude: 8.436850
Date/Time Start: 2022-07-13T00:00:00 * Date/Time End: 2022-11-16T00:00:00
Event(s):
Kampen_pigm_july * Latitude: 54.957830 * Longitude: 8.381070 * Date/Time: 2022-07-25T00:00:00 * Location: Blidselbucht, Kampen, Sylt, Germany * Method/Device: Sampling by hand (HAND)
Kampen_pigm_november * Latitude: 54.957830 * Longitude: 8.381070 * Date/Time: 2022-11-16T00:00:00 * Location: Blidselbucht, Kampen, Sylt, Germany * Method/Device: Sampling by hand (HAND)
Kampen_pigm_september * Latitude: 54.957830 * Longitude: 8.381070 * Date/Time: 2022-09-14T00:00:00 * Location: Blidselbucht, Kampen, Sylt, Germany * Method/Device: Sampling by hand (HAND)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventSteinberg, Ronny
2Sampling date/time, experimentDate/time sampling expSteinberg, Ronny
3LATITUDELatitudeSteinberg, RonnyGeocode – of sampling event
4LONGITUDELongitudeSteinberg, RonnyGeocode – of sampling event
5Type of studyStudy typeSteinberg, Ronny
6Date/time analysis, experimentDate/time analysis expSteinberg, Ronny
7SpeciesSpeciesSteinberg, RonnyVisual identification (VID)cf. Velutina
8Species, unique identification (Semantic URI)Species UID (Semantic URI)Steinberg, RonnyVisual identification (VID)cf. Velutina
9Species, unique identification (URI)Species UID (URI)Steinberg, RonnyVisual identification (VID)cf. Velutina
10Sample IDSample IDSteinberg, Ronny
11Biomass, dry massBiom dmgSteinberg, RonnyScale, Sartorius, Entris 2241-1s
12Chlorophyll aChl aµg/mgSteinberg, Ronny
13Chlorophyll c2Chl c2µg/mgSteinberg, Ronny
14DiadinoxanthinDiadinoxanthinµg/mgSteinberg, Ronny
15DiatoxanthinDiatoxanthinµg/mgSteinberg, Ronny
16beta-Caroteneb-Carµg/mgSteinberg, Ronny
17FucoxanthinFucoµg/mgSteinberg, Ronny
18ViolaxanthinViolaxanthinµg/mgSteinberg, Ronny
19Chlorophyll bChl bµg/mgSteinberg, Ronny
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
450 data points

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