de.pangaea.dataset996141 und de.pangaea.dataset996148 dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-07-24T12:14:22Z https://doi.pangaea.de/10.1594/PANGAEA.996141 2026-07-24T12:14:18 publication Thomas, Oliver Robert

ollie@projectseagrass.org

https://orcid.org/0009-0000-1636-9492 information author Unsworth, Richard K F

r.k.f.unsworth@swansea.ac.uk

author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital This dataset was collected in support of a study on the resilience of restored seagrass (Zostera marina) meadows to marine heatwave exposure in North Wales, United Kingdom (Thomas et al., 2026). It provides intertidal quadrat survey data recording seagrass shoot and reproductive shoot density, rhizome presence, canopy height, percentage cover of seagrass, epiphytes and algae, and sediment redox potential, pH and temperature, collected during repeated monitoring visits to four restored seagrass sites between June 2023 and October 2025. completed Unsworth, Richard K F

r.k.f.unsworth@swansea.ac.uk

principalInvestigator Field experiment In-situ Monitoring restoration theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact SORNW Seagrass Ocean Rescue North Wales theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -4.587140999999974 -4.3208230000000185 52.866446 53.320517 2023-06-04T00:00:00 2025-10-08T00:00:00 0.0 0.0 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Date/Time of event thematicClassification Date/Time of event 2 thematicClassification Type of study thematicClassification DEPTH, water physicalMeasurement m m DATE/TIME thematicClassification Date of the monitoring/survey visit Principal investigator thematicClassification Identification thematicClassification Project thematicClassification Site thematicClassification Site index code thematicClassification Planting method thematicClassification Planted (yes/no) thematicClassification Monitoring identification thematicClassification Month thematicClassification Year of observation physicalMeasurement a AD a AD Monitoring method thematicClassification Sampling strategy thematicClassification Monitoring area physicalMeasurement m**2 m**2 Condition thematicClassification Intertidal / subtidal Experimental plot thematicClassification Plot / transect Zostera marina, shoots physicalMeasurement Manual quadrat count; Observed # # Zostera marina, shoots physicalMeasurement Manual quadrat count #/m**2 #/m**2 Depth, redox physicalMeasurement Ruler stick cm cm Worm casts physicalMeasurement Manual quadrat count # # Worm casts physicalMeasurement Manual quadrat count #/m**2 #/m**2 Canopy height physicalMeasurement Ruler stick; 1 cm cm Canopy height physicalMeasurement Ruler stick; 2 cm cm Canopy height physicalMeasurement Ruler stick; 3 cm cm Epiphytes, cover physicalMeasurement Visual estimation % % Algae, cover physicalMeasurement Visual estimation % % Blackening physicalMeasurement Visual estimation % % Bleaching physicalMeasurement Visual estimation % % Oxidation reduction (RedOx) potential physicalMeasurement Multiparameter probe, HANNA Instruments, HI-98191; Sediment mV mV pH thematicClassification Multiparameter probe, HANNA Instruments, HI-98191; Sediment Sediment surface temperature physicalMeasurement Multiparameter probe, HANNA Instruments, HI-98191 °C °C Lithology/composition/facies thematicClassification Sea level, relative physicalMeasurement m m Accuracy, vertical physicalMeasurement Global Positioning System (GPS), Garmin, GPSmap 60 CSx; dGPS cm cm Comment thematicClassification Monitoring reference database thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.996141?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: NWMHWOTRU2026_CYD_monitoring (Carreg y Defaid (CYD)) * LATITUDE: 52.866446 * LONGITUDE: -4.463013 * DATE/TIME START: 2023-06-04T00:00:00 * DATE/TIME END: 2024-09-18T00:00:00 * METHOD/DEVICE: Field experiment Intertidal zone / mean sea level 2023-06-04T00:00:00 EVENT LABEL: NWMHWOTRU2026_PHD_monitoring (Penrhos Headland (PHD)) * LATITUDE: 53.305035 * LONGITUDE: -4.587141 * DATE/TIME START: 2024-10-16T00:00:00 * DATE/TIME END: 2025-10-06T00:00:00 * METHOD/DEVICE: Field experiment Intertidal zone / mean sea level 2024-10-16T00:00:00 EVENT LABEL: NWMHWOTRU2026_PYC_monitoring (Pen-y-Chain (PYC)) * LATITUDE: 52.903678 * LONGITUDE: -4.320823 * DATE/TIME START: 2023-06-05T00:00:00 * DATE/TIME END: 2024-09-20T00:00:00 * METHOD/DEVICE: Field experiment Merged Pen-y-Chain site (former East/West plots); midpoint coordinate; intertidal zone / mean sea level 2023-06-05T00:00:00 EVENT LABEL: NWMHWOTRU2026_PYN_monitoring (Penrhyn (PYN)) * LATITUDE: 53.320517 * LONGITUDE: -4.577271 * DATE/TIME START: 2024-10-17T00:00:00 * DATE/TIME END: 2025-10-08T00:00:00 * METHOD/DEVICE: Field experiment Intertidal zone / mean sea level 2024-10-17T00:00:00 Related to 2026-01-01 publication https://doi.org/10.1088/1748-9326/ae6d17 Thomas, Oliver Robert

ollie@projectseagrass.org

https://orcid.org/0009-0000-1636-9492 information author Patterson, Bridget M https://orcid.org/0009-0000-8621-2247 information author Rowland, Caroline author Berthou, Ségolène https://orcid.org/0000-0002-9164-0841 information author Worsfold, Mark https://orcid.org/0000-0003-0722-4456 information author Yates, Emily https://orcid.org/0009-0000-0776-4466 information author Keen, Charlotte author den Haan, Stijn author Unsworth, Richard K F

r.k.f.unsworth@swansea.ac.uk

author documentDigital Environmental Research Letters 21(10) 104019