Ascophyllum - Wikipedia
Ascophyllum nodosum is a large, common cold water seaweed or brown alga (Phaeophyceae) in the family Fucaceae. Its common names include knotted wrack, egg wrack, feamainn bhuí, rockweed, knotted kelp and Norwegian kelp.
Knotted Wrack (Rocky Shore Species of the Americas) - iNaturalist
It is seaweed of the northern Atlantic Ocean, also known as feamainn bhuí, rockweed, Norwegian kelp, knotted kelp, knotted wrack or egg wrack. It is common on the north-western coast of Europe (from Svalbard to Portugal) including east Greenland and the north-eastern coast of …
Ascophyllum nodosum - Smithsonian Institution
Knobbed Wrack, Knotted Wrack, Rockweed, Sea Whistles, Yellow Tang Ascophyllum nodosum is a brown algae commonly known as Knotted Wrack. It is an Arctic-Boreal species being native to both coasts of the North Atlantic including the White Sea, Iceland, Greenland, and Baffin Island.
Knotted Wrack (Nahant Rocky Intertidal Zone) · iNaturalist
It is seaweed of the northern Atlantic Ocean, also known as rockweed, Norwegian kelp, knotted kelp, knotted wrack or egg wrack. It is common on the north-western coast of Europe (from Svalbard to Portugal) including east Greenland and the north-eastern coast of North America.
Knotted Wrack - iNaturalist
Knotted wrack is found in the North Sea and along the Atlantic coasts. The species attaches itself to rocks and stones in the middle of the tidal region. It can survive for a long time after breaking off from its base.
Knotted wrack (Ascophyllum nodosum) - MarLIN - The Marine …
A common large brown seaweed, dominant on sheltered rocky shores. The species has long strap like fronds with large egg-shaped air bladders at regular intervals. The fronds of Ascophyllum nodosum are typically between 0.5 and 2m in length. The species often bears tufts of the small reddish-brown filamentous epiphytic algae Polysiphonia lanosa.
Ascophyllum nodosum, more commonly called Rockweed, is a species of brown algae or seaweed that is found along the New England coast. It grows on available hard surfaces, including rocks, shells, and dock pilings. Rockweed averages in length between 20-30 inches and can grow longer where there is less wave action to cause breakage.
The overlooked reef forming species - Temperate Reefs
Ascophyllum nodosum also known as egg wrack, is a canopy forming brown seaweed (algae), that in large quantities can provide habitat, food, and shelter for many marine organisms (Fegley 2001).
Rockweed - Ascophyllum nodosum
This a large brown seaweed, very common along the Norwegian coastline. It is known as rockweed, Norwegian kelp, knotted kelp or knotted wrack. The stipe is irregularly branched with egg-shaped air bladders. They may reach a length of 2 meters. The color is olive-green.
Knotted wrack (Ascophyllum nodosum) – Seashore to Forest Floor
One common species in New England is knotted wrack (Ascophyllum nodosum). On a recent visit to the beaches in Marshfield, I found this species drooped in large mats across the large boulders exposed at low tide. Large masses of knotted wrack attached to …