Section 32. The owner of any fishing gear mentioned in section thirty-one which is swept ashore by storm or tide or other natural causes and deposited upon the shore, beaches or flats, whether public or private, may recover the same within thirty days from the time of such deposit without liability for trespass; provided, that such owner in so doing does not commit any unreasonable or wanton injury to the property whereupon such fishing gear is deposited. In the event such fishing gear shall not be so recovered within such period or recovered by other legal means within sixty days it shall enure to the riparian owner of such shore, beach or flat in the manner provided in chapter one hundred and thirty-four.