Underwater Light and Currents at Eelgrass-Mussel Habitats in Denmark, 2023

Measurements of underwater light, currents, and water properties from contrasting eelgrass and blue mussel habitats in Lovns Bredning, Denmark. The dataset includes photosynthetically active radiation (PAR), current speed and direction, and conductivity-temperature-depth (CTD) data collected from April to September 2023 by researchers at the Technical University of Denmark. It supports the 2026 publication by Bohr et al. on mussels improving light conditions for downstream eelgrass.

Use Cases

• Modeling underwater light attenuation (Kd(PAR)) based on sensor depth series and calculated Kd values.
• Analyzing spatial patterns in photosynthetically active radiation across 34 sensor stations.
• Investigating relationships between current speed/direction and habitat type in northern and southern study sites.
• Assessing water column properties (conductivity, temperature, density) in relation to eelgrass and mussel beds.

Strengths

• Data collection spans a 6-month period from April to September 2023.
• Includes measurements from 34 distinct PAR sensor stations.
• Uses named, specific instruments for PAR, current, and CTD measurements.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

National Institute of Aquatic Resources, Technical University of Denmark

Collection Method

Fieldwork using boat-deployed sensor frames, with sensors cleaned every 1-3 weeks. Data processed in Rstudio.

Time Range

04/2023 to 09/2023

Freshness

Last updated 2026-05-18 08:14:28

Geography

Lovns Bredning, Limfjorden, Denmark