Tidepool Tim says,  “Dulse is pretty seaweed to view - it gets its name from the resemblance of the fronds to the likeness of a humans hands and fingers.  The color varies from deep reddish black up to a bright apple red.  Weathered fronds are often covered with bryozoans, hydroids, and have lots of holes from being nibbled on by snails, and sea urchins.  In New England and the Canadian Maritimes, particularly Grand Manaan Island, New Brunswick - dried dulse is a favorite snack food.  Fishermen collect dories full of this seaweed, dry it out on nets in the summer sun and then sell it locally or on the internet.  It's a large industry that has been in existence for many years.  Dried dulse can be kept indefinitely. its a very salty treat full of good micronutrients. Dulse is a great addition to any cold-water marine tank - it brightens up the aquarium, provides habitat, and a food source for other invertebrates.  Dulse has a very small inconspicuous holdfast similar to sea lettuce & purple laver.  Dulse plants colonize rocks but also seem to like attaching to blue mussels and horse mussels as well.”