Oliver Robert Thomas
Thomas
Oliver Robert
Richard K F Unsworth
Unsworth
Richard K F
Swansea University
Spatial, Light, Temperature and Seagrass Planting and Monitoring record data from North Wales 2023-2024
PANGAEA
Data Publisher for Earth & Environmental Science
dataset bundled publication
This data package contains restoration, monitoring and in-situ environmental data collected between February 2023 and October 2025 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). Seagrass was planted at four intertidal sites along the Llŷn Peninsula and Ynys Môn using directly injected seeds, hessian bags and seed balls; planting locations were surveyed with a differential Global Positioning System (dGPS) receiver, producing spatial point and polygon records of the planted areas. Restoration success was subsequently assessed through repeated intertidal quadrat surveys recording shoot and reproductive shoot density, rhizome presence, canopy height, percentage cover of seagrass, epiphytes and algae, and sediment redox potential, pH and temperature, measured using a portable multiparameter meter. In-situ seawater/intertidal temperature and light intensity were additionally recorded at 30-minute intervals over one month in May 2024 using a fixed temperature/light data logger. These restoration and monitoring records were combined with satellite-derived sea surface temperature and marine heatwave indicator data from the E.U. Copernicus Marine Service (doi:10.48670/moi-00054, doi:10.48670/moi-00055) to evaluate how marine heatwave exposure affected the establishment and persistence of a restored seagrass meadow. The package comprises four data types - in-situ light and temperature logger data, spatial point and polygon data of planting locations, seagrass planting records, and seagrass monitoring records - each published here as an individual dataset.
Bridget M Patterson
Patterson
Bridget M
Caroline Rowland
Rowland
Caroline
Ségolène Berthou
Berthou
Ségolène
Mark Worsfold
Worsfold
Mark
Emily Yates
Yates
Emily
Charlotte Keen
Keen
Charlotte
Stijn den Haan
den Haan
Stijn
Marine heat waves endanger the rebuilding of marine life
Environmental Research Letters
journal article
Atlantic - European North West Shelf - Ocean Physics Analysis and Forecast
Mercator Ocean International
dataset
Atlantic - European North West Shelf - Ocean Wave Analysis and Forecast
Natural Environment Research Council
NERC
The National Lottery Heritage Fund
HLF
datasets
Field experiment; In-situ; Monitoring; restoration
unrestricted
application/zip