Egg Wrack

Ascophyllum nodosum

Also called ‘Knotted Wrack’, this is a yellowish to olive-green seaweed, which has long, narrow chain-like fronds with gas-filled bladders. This is a slow-growing seaweed which has no mid-rib. Height 0.5 to 2m.

Found on rocky shores, often on the mid-shore, preferring sheltered conditions, extending into estuaries and usually attached to rocks. It reproduces April to June. Egg Wrack Wool (Polysiphonia lanosa) is commonly found attached to it in clumps. A common and widespread species.

Photograph of Egg Wrack (Ascophyllum nodosum) taken June 2012, Llandudno, Wales. © Pete Hillman 2012. Camera used Nikon Coolpix P500.

10/1610/16 by Peter Hillman Categories: Algae, Coast, Llandudno, Nature Photography, Places, SeaweedsTags: Ascophyllum nodosum, Egg Wrack, Knotted Wrack, Llandudno, Nature, Nature Photography, Ocean, Sea, Seashore, Seaweed, Wales, Wildlife, Wildlife Photography 2 Comments