(a) In general The authority of the Secretary under this subchapter is in addition to, and shall not affect
(1) the authority of the Secretary under other subchapters
of this chapter or the Lacey Act Amendments of 1981 (
16 U.S.C.
3371 et seq.) or the exemption for Alaskan natives under section
1371 (b) of this title as applied to other marine mammal populations; or
(2) the authorities provided under subchapter III of this chapter.