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Zander, A; O'Corcora, Tadhg; Bockelmann, Anna-Christina; Reusch, Thorsten B H; Stevenson, Angela (2025): Zostera marina seedling emergence count in field experiments, Kiel, Germany (2023) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984656, In: Zander, A et al. (2025): Zostera marina seedling emergence count under varying salinity, temperature, seed colour, sowing time & Arenicola marina bioturbation in field & lab experiments, Kiel, Germany (2023) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.984654

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Published: 2025-09-11 • DOI registered: 2025-10-10

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Abstract:
Seed-based seagrass restoration is expanding globally, to speed up the slow natural recolonization success of Zostera marina meadows. This study aimed to find practical guidelines to enhance seed-based restoration efforts in the German Baltic Sea, and other regions. To this end, parallel field and laboratory experiments were conducted, to examine the effects of six biotic and abiotic factors on seedling emergence (germination) over time.
Seeds were collected by snorkelers from two sites (Falckenstein, Kiekut) in Schleswig-Holstein, Germany between July and August 2022.
In the field, located in Kiel, Germany, 62 plots (50 x 50 cm) were sown with 100 seeds each of different seed coat colours (mixed from both sites) at three sowing time points (February, March, April 2023). Seedling and Arenicola marina mounds were counted biweekly from April until August 2023. Kiel Fjord temperature and salinity were taken from (Hiebenthal et. al., 2023).
Keyword(s):
Baltic Sea; bioturbation; phenology; restoration; Salinity; Temperature
Related to:
Hiebenthal, Claas; Begler, Christian; Melzner, Frank (2023): Continuous water temperature and salinity data in front of GEOMAR Pier, Kiel, Germany (2022-2023) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963281
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0859: SeaStore
Helmholtz Association of German Research Centres (HGF), grant/award no. HI-CAM: Helmholtz-Climate-Initiative
Coverage:
Latitude: 54.348056 * Longitude: 10.150556
Date/Time Start: 2023-02-22T00:00:00 * Date/Time End: 2023-08-01T00:00:00
Event(s):
Zostera_marina_field_experiment_2023 (Seebar) * Latitude Start: 54.348056 * Longitude Start: 10.150556 * Latitude End: 54.348056 * Longitude End: 10.150556 * Date/Time Start: 2023-02-22T00:00:00 * Date/Time End: 2023-08-01T00:00:00 * Location: Kiel, Germany * Method/Device: Field experiment
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelReusch, Thorsten B H
2DATE/TIMEDate/TimeReusch, Thorsten B HGeocode – seed sowing
3DATE/TIMEDate/TimeReusch, Thorsten B HGeocode – seedling count
4LATITUDELatitudeReusch, Thorsten B HGeocode
5LONGITUDELongitudeReusch, Thorsten B HGeocode
6LocationLocationReusch, Thorsten B H
7Sample code/labelSample labelReusch, Thorsten B HPlot ID
8MonthMonthReusch, Thorsten B Hsowing time
9TreatmentTreatReusch, Thorsten B HSeed coat colour
10Zostera marinaZ. marina#Reusch, Thorsten B Hseedling count [#/100]
11Zostera marinaZ. marina#/m2Reusch, Thorsten B Hseedling density
12Zostera marinaZ. marina#Reusch, Thorsten B Hasymptotic seedling number
13IndividualsInd#Reusch, Thorsten B HLugworm count per 0.25 m**2
14Individuals per areaInd a#/m2Reusch, Thorsten B HLugworm density
15Experiment dayExp daydayReusch, Thorsten B Hsince sown
16SalinitySalReusch, Thorsten B H
17Temperature, waterTemp°CReusch, Thorsten B H
18CommentCommentReusch, Thorsten B H
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
5552 data points

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