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Koop-Jakobsen, Ketil (2023): Mesocosm experiment with salt marsh vegetation from the low marsh dominated by Elymus athericus and pioneer zone dominated by Spartina anglica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955057

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Abstract:
The data originates from a mesocosm experiment with salt marsh plants from the Wadden Sea (Hamburger Hallig: 54°36 06N, 8°49'08E), investigating the impact of increased temperature and CO₂ on salt marsh vegetation. The investigation was conducted over 100days from May to August 2021 using 12 largescale mesocosms (1900L) in a full factorial design with an enhancement of temperature to +3C above ambient temperature and CO2 enrichment of 800ppm. The ambient water temperature was identical to the temperature of the coastal water pumped into mesocosms ranging from 11-22°C over the 100 days of incubation. In the increased temperature treatments, the temperature was kept at 3°C above the ambient temperature, regulated via a system of heaters and coolers. In the ambient CO₂ treatments, atmospheric air was pumped into the systems and reached an air concentration of 380ppm, whereas in the enriched CO2 treatment, atmospheric air was enriched with CO₂ to a concentration of 800ppm and pumped into the systems. CO2 measured in the mesocosms air compartment was 50-150ppm above the ambient concentration, as some CO2 was lost to water and vegetation.
Keyword(s):
Biomass; Elymus; organic matter; pioneer zone; plants; salt marsh; Spartina; Vegetation; Wadden Sea
Supplement to:
Koop-Jakobsen, Ketil; Dolch, Tobias (2023): Future climate conditions alter biomass of salt marsh plants in the Wadden Sea. Marine Biodiversity, 53(3), 41, https://doi.org/10.1007/s12526-023-01347-y
Coverage:
Median Latitude: 54.602041 * Median Longitude: 8.818932 * South-bound Latitude: 54.601680 * West-bound Longitude: 8.818545 * North-bound Latitude: 54.602401 * East-bound Longitude: 8.819318
Date/Time Start: 2021-05-11T00:00:00 * Date/Time End: 2021-08-19T00:00:00
Event(s):
HH_Hallig_Low_marsh  * Latitude: 54.601680 * Longitude: 8.819318 * Date/Time: 2021-08-19T00:00:00 * Location: Germany, Schleswig-Holstein * Method/Device: Sampling by hand (HAND) * Comment: Collection site for Elymus athericus dominated samples in the low marsh
HH_Hallig_Pioneer_zone  * Latitude: 54.602401 * Longitude: 8.818545 * Date/Time: 2021-05-11T00:00:00 * Location: Germany, Schleswig-Holstein * Method/Device: Sampling by hand (HAND) * Comment: Collection site for Spartina anglica dominated samples in the Pioneer zone
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventKoop-Jakobsen, Ketil
2 Experiment/study setupSetupKoop-Jakobsen, Ketil
3 Date/time start, experimentDate/time start expKoop-Jakobsen, Ketil
4 Date/time end, experimentDate/time end expKoop-Jakobsen, Ketil
5 Sample commentSample commentKoop-Jakobsen, Ketil
6 SpeciesSpeciesKoop-Jakobsen, Ketil
7 Treatment: temperature descriptionT:Temp descrKoop-Jakobsen, Ketil
8 Treatment: Carbon dioxideT:CO2Koop-Jakobsen, Ketil
9 Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 1
10 Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 2
11 Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilDried and weightedReplicate 3
12 Biomass, dry mass per areaBiom dmg/m2Koop-Jakobsen, KetilCalculatedAverage
13 Biomass, dry mass, standard deviationBiom dm std dev±Koop-Jakobsen, KetilCalculated
14 Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 1
15 Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 2
16 Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCountedReplicate 3
17 Spartina anglica, stem densityS. anglica stem den#/m2Koop-Jakobsen, KetilCalculatedAverage
18 Spartina anglica, stem density, standard deviationS. anglica stem den std dev±Koop-Jakobsen, KetilCalculated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
384 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Setup		3 
Date/time start exp		4 
Date/time end exp		5 
Sample comment		6 
Species		7 
T:Temp descr		8 
T:CO2		9 
Biom dm [g/m2]
(Replicate 1, Dried and weighted)		10 
Biom dm [g/m2]
(Replicate 2, Dried and weighted)		11 
Biom dm [g/m2]
(Replicate 3, Dried and weighted)		12 
Biom dm [g/m2]
(Average, Calculated)		13 
Biom dm std dev [±]
(Calculated)		14 
S. anglica stem den [#/m2]
(Replicate 1, Counted)		15 
S. anglica stem den [#/m2]
(Replicate 2, Counted)		16 
S. anglica stem den [#/m2]
(Replicate 3, Counted)		17 
S. anglica stem den [#/m2]
(Average, Calculated)		18 
S. anglica stem den std dev [±]
(Calculated)
HH_Hallig_Pioneer_zone Mesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbientAmbient9055471134862296
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbient800ppm9807991198992200
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°CAmbient1109807840919166
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°C800ppm1453120813171326123
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassOther speciesAmbientAmbient2021468414459
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassOther speciesAmbient800ppm8912110110416
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassOther species+3°CAmbient23916817819538
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassOther species+3°C800ppm101211288666
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Belowground biomassAll speciesAmbientAmbient3097375641023652511
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Belowground biomassAll speciesAmbient800ppm3089405439213688523
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Belowground biomassAll species+3°CAmbient5604426846844852684
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Belowground biomassAll species+3°C800ppm3990445246464363337
HH_Hallig_Low_marsh Mesocosm2021-05-112021-08-19Aboveground biomassElymus athericusAmbientAmbient491478747572152
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassElymus athericusAmbient800ppm748551948749199
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassElymus athericus+3°CAmbient789750500680157
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassElymus athericus+3°C800ppm42754047748157
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassOther speciesAmbientAmbient00461527
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassOther speciesAmbient800ppm07372740
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassOther species+3°CAmbient05401838
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassOther species+3°C800ppm63273273203121
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Belowground biomassAll speciesAmbientAmbient911265013101624911
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Belowground biomassAll speciesAmbient800ppm1363171420971725367
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Belowground biomassAll species+3°CAmbient1624199114051673296
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Belowground biomassAll species+3°C800ppm862148212241189311
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbientAmbient166770016001322540
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbient800ppm2263165020501988311
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°CAmbient1611110014001370257
HH_Hallig_Pioneer_zoneMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°C800ppm2000170016001767208
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbientAmbient2235215029002428411
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglicaAmbient800ppm3278275035503193407
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°CAmbient3333340019002878847
HH_Hallig_Low_marshMesocosm2021-05-112021-08-19Aboveground biomassSpartina anglica+3°C800ppm1765275022502255493