@maggiemae yes, sea foam. Something to do with the whipping of protein from the seaweed, like whipping egg whites, or so I’ve been told and just popped over to look it up on Wikipedia
Sea foam, ocean foam, beach foam, or spume is a type of foam created by the agitation of seawater, particularly when it contains higher concentrations of dissolved organic matter (including proteins, lignins, and lipids) derived from sources such as the offshore breakdown of algal blooms.
Sea foam - Wikipedia
Sea foam, ocean foam, beach foam, or spume is a type of foam created by the agitation of seawater, particularly when it contains higher concentrations of dissolved organic matter (including proteins, lignins, and lipids) derived from sources such as the offshore breakdown of algal blooms.
Sea foam - Wikipedia