Shetland Islands Dominant Marine Biotope Map

The Shetland Islands Dominant Marine Biotope Mapping project develops a high-resolution (50m) predictive map of dominant marine biotopes within Shetland’s waters out to 12 nautical miles. This broadscale assessment of subtidal biotopes supports local marine management, conservation planning, and sustainable resource use.

The project employs MaxEnt, a machine-learning approach for predictive habitat mapping. MaxEnt uses occurrence data and environmental variables to model and predict biotope distribution.

An adaptive approach ensures the model is continuously refined using the latest available environmental and species distribution data. By integrating new records and addressing data gaps, the predictive accuracy improves over time. This method helps address challenges such as limited records, spatial bias, and dependency on historical data.

The resulting high-resolution map provides researchers, policymakers, and marine stakeholders with a tool for informed decision-making in managing Shetland’s marine environment.

Download the latest full Shetland Islands Dominant Marine Biotope Map in the following report

Map of Shetland showing seabed habitats

Role of UHI Shetland

Role of UHI Shetland

Leading the predictive modelling using MaxEnt to generate spatial predictions of marine biotopes by analysing environmental and benthic habitat distribution data.

Project Staff

Student Interns

  • Stephen Gillanders - responsible for the transition to R-based coding which was supported through a funded internship provided by the University of Aberdeen

Project Publications and Outputs

Project Publications and Outputs

Riley, T.G., Gillanders, S. & Shucksmith, R. (2026). Shetland Islands Dominant Marine Biotope Map (2025 update). UHI Shetland report. p31.

Riley, T.G., & Shucksmith, R (2025). Shetland Islands Dominant Marine Biotope Map (2024 update). UHI Shetland report. p12.

Riley, T. G & Shucksmith, R (2024). Towards Net Zero: The role of marine habitats. UHI Shetland Policy Brief.

Riley, T. G., Shelmerdine, R. L., Shucksmith, R. & Mouat, B (2024). Quantifying and assessing the habitat-fishery encounters within the Shetland scallop dredge fishery. UHI Shetland report. p53.

Riley, T.G., Shucksmith, R & Mouat, B (2024). Distribution modelling of the Shetland Islands benthic habitats. UHI Shetland report. p91.

Datasets

Shetland Islands dominant marine biotope map 2023.

Shetland Islands dominant marine biotope map (2024 update). 

Shetland Islands dominant marine biotope map (2025 update).