Nothing in this Act shall affect any jurisdiction, power, or authority of the said Lord Warden, or of any of the officers of the Cinque Ports or other persons, under any Act relating to the adjustment of salvage, or any jurisdiction, power, or authority of the Court of Admiralty of the Cinque Ports, or of any of the officers of such court, or the rights of the said Lord Warden to or in respect of flotsam, jetsam, and lagan.