You could say so, similar ,, yes,,
But, a marine anchor is used to hold a length of chain, to the sea bed, this in turn then hold the boat, with 3 to 5 times the depth let out, so most of the chain is lying along the seabed,, A ground anchor, has a direct pull on it
A 10/15 tonne ,, 40 foot boat, will only have about a 15kg anchor, to hold say 30 meters of chain,,