Priority marine feature (PMF) videos
View fascinating marine survey video footage of some of Scotland’s priority marine features.
Northern feather star
The northern feather star is a graceful and curious echinoderm with 10 colourful, 15cm-long arms.
Flame shell
Flame shells or file shells live on the seabed inside nests built from shells, stones and other materials. Divers spot them only rarely.
Maerl: a hard seaweed
Maerl beds are an important habitat for a wide range of smaller marine plants and animals. They’re great places for juvenile animals to hide from predators. Many bivalves, urchins, sea cucumbers, anemones and worms burrow in the maerl gravel beneath the living bed. In places where wave movement stirs the seabed, maerl beds develop into a ‘ridge and furrow’ formation.
Seagrass beds
Many fish and small invertebrates live among seagrass beds, sheltering between the swaying leaves of the plants. Common eelgrass is one type of seagrass. The beautiful kaleidoscope jellyfish (Haliclystus auricula) is strongly associated with seagrass beds.
Serpulid reefs
Loch Creran’s serpulid reefs grow at depths of 6 to 10m, and reach sizes of up to 75cm high and 1m across. Also known as tubeworms, the reefs create a high-rise home for a host of animals.
Basking shark
Scotland has a few great locations for spotting basking sharks. These gentle giants have no teeth and grow to around 10m on a diet of plankton. Basking sharks prefer open waters, but move closer to shores in summer. Look for the fish feeding at the surface, with their huge mouths wide open.