Piece of dead wood at sea shore

Piece of dead wood

Piece of dead wood at sea shore

Piece of dead wood at sea shore

Piece of lifeless wood at sea bank

I found this piece of dead wood at Kallady beach in Batticaloa, Sri lanka , and I try to remove this dead wood away from sea shore but   I know one thing some sea shells living its body  so  give up my idea this dead wood also helps once life. If this one is in the sea what happen fishes also enjoy with others.