This two year study was funded by SMEEF to provide a baseline of population, distribution, movement and critical habitats of the flapper skate (Dipturus intermedius) locally. Flapper skate are recognised as one of the most threatened marine vertebrates and scientific data is needed to manage this critically endangered species in Scottish waters. UHI Shetland team worked with the local fishing community to ensure that their capture-mark-recapture scheme worked, with tagged skate being reported and returned alive.
The study tagged 127 skate in 37 locations across Shetland and Fair Isle. Skate lengths were recorded ranging from 37cm for small juveniles to 212 cm for the impressive, mature adults. A Baited Remote Underwater Video System (BRUVS) was used allowing for enhanced ID to identify individuals from spot patterns. These two complementary methods provided unique insights proving that flapper skate were abundant in both areas and in particularly high abundance in Fair Isle. This study is the first to present detailed population ecology information on flapper skate in these areas, showing distribution patterns, critical habitats, and giving behavioural insights. Data collection continues from recaptures and the relationships established with local anglers will result in on-going collaboration. This important dataset will continue to inform conservation and management strategies long into the future.
In 2023 SMEEF was able to provide a grant of £23,103 to support this work using resources from donations made by businesses to SMEEF.