; and (II) upon the United States grant of such authority, the line established by such grant of authority; or (v) for any possession of the United States not under clause (ii), (iii), or (iv), the coastline of such possession. (C) Construction Nothing in this definition may be construed to diminish the authority of the Department of Defense, the Department of the Interior, or any other Federal department or agency. (6) Healthy target stock The term healthy target stock means a component of a fishery managed in a similar or equivalent way to fisheries managed under the Magnuson-Stevens Fishery Conservation and Management Act ( 16 U.S.C. 1801 et seq. ) or by a United States interstate marine fisheries commission, or a component of a fishery targeted for harvest that is not overfished or experiencing overfishing. (7) Lessee The term lessee means any party to a lease, right-of-use and easement, or right-of-way, or an approved assignment thereof, issued pursuant to the Outer Continental Shelf Lands Act ( 43 U.S.C. 1331 et seq. ). (8) Multi-trophic aquaculture The term multi-trophic aquaculture means an assemblage of cultured species grown in close enough proximity to one another so that cultured species provide ecosystem services to one another. (9) Offshore aquaculture The term offshore aquaculture means aquaculture conducted in the exclusive economic zone. (10) Offshore aquaculture facility The term offshore aquaculture facility means— (A) an installation or structure used, in whole or in part, for offshore aquaculture