What is rockweed?

Rockweed, scientifically known as Ascophyllum nodosum, is a type of brown seaweed commonly found along the Atlantic and Pacific coasts. It grows in intertidal zones and is characterized by its long, branching fronds and distinctive air bladders. Rockweed is ecologically significant, providing habitat and food for various marine organisms, and is also harvested for use in fertilizers, animal feed, and dietary supplements due to its rich nutrient content.