Tanya Riley, Rachel Shucksmith & Beth Mouat. 2024. UHI Shetland.

Executive summary

Positioned between the Orkney and Shetland archipelagos in the North Atlantic, the Fair Isle
Demonstration and Research Marine Protected Area (DR MPA) plays a crucial role in marine
management and conservation efforts. Designated under the Marine (Scotland) Act 2010, it offers a
unique opportunity for innovative marine management strategies, focusing on sustainability,
conservation, and ecotourism. Limited knowledge exists about the benthic habitats, identified as a
research priority in the Fair Isle DR MPA Winter 2020/21 stakeholder consultation. This report focuses
on modelling the potential benthic habitat composition within the Fair Isle DR MPA, with an emphasis
on Priority Marine Features (PMFs).

Utilising Distribution Models (DMs), this study aims to address this knowledge gap by analysing
biotopes with environmental data, providing a baseline for future research, and marine management
initiatives. The analysis covers 28 distinct biotope groups, including PMFs, revealing their potential
distribution within the Fair Isle DR MPA.

The DMs, employing MaxEnt, demonstrated robust predictive accuracy, as evidenced by high Area
Under the Curve (AUC) values during validation. Eleven biotope groups and five PMF-focused
subgroups were modelled within the Fair Isle DR MPA, showcasing the efficacy of DMs in delineating
potential habitat distributions.

Despite the success of DMs in predicting habitat distributions, the scarcity of biotope records within
the designated area underscores the need for expanded data collection efforts within the Fair Isle DR
MPA. The report recommends dedicated biotope surveys, long-term monitoring, species-specific
studies, and community engagement to enhance our understanding of the marine ecosystem and
inform adaptive management strategies.

While the DMs provide a robust starting point, ongoing research efforts are crucial for advancing our
understanding of the Fair Isle DR MPA marine environment. This study highlights the importance of
localised biotope data for precise mapping and emphasises the need for comprehensive research to
foster informed and sustainable marine management practices.