People come to pick over the beach wrack for the coiled, weather-revealed shells.
This ancient chart of the "Spanish wrack " as it is labeled, is owned by the present Duke of Argyll, and has been used by the modern treasure seekers who are unable even with its aid to find the remains of the Florencia, so deeply have her timbers sunk in the tide-swept silt of the bay.
Together, they collect flotsam and wrack that tell of shipwrecks, shifting undersea tectonic plates, the birth and death of sea creatures, their migrations and molts.
there was a thin moon, a wrack of cloud
Saw wrack is the main seaweed used, taken fresh from the shore, washed in seawater and stored briefly.
The May scallach, coincident with the week between the full moon and the last quarter, brought one of the greatest yields of wrack of every description and species to the beach at Enniscrone.
We are still finding out where wig wrack grows, we have 70+ confirmed sites in Scotland so far and four in Northern Ireland.
However, McLachlan and McGwynne quantified algal wrack as a nitrogen source for beaches as a whole.
Deposited wrack may decompose in place or may be removed by subsequent tides leaving an unvegetated patch of bare soil.
Isopods and amphipods spend low tide buried in wrack , where variation in temperature and humidity is strongly damped relative to the exposed intertidal surface.