Seaweed

A species of grass which grows in the sea. When east upon land, it belongs to the owner of the land adjoining the sea-shore, upon the grounds that it increases gradually, that it is useful as manure and a protection to the ground, and that it is some compensation for the encroachment of the sea upon the land; 3 B. & Ad. 967; Emans v. Turnbull, 2 Johns. (N. Y.) 313, 3 Am. Dec. 427.

See Rogers v. Judd, 5 Yt. 223, 26 Am. Dec. 299; Hall v. Lawrence, 2 R. I. 218, 57 Am. Dec. 715.

But when cast upon the shore between high and low water mark it belongs to the public and may be lawfully appropriated by any person; Mather v. Chapman, 40 Conn. 382, 16 Am. Rep. 54.

See Alluvion.