Except as provided in section
1379 of this title, the provisions of this chapter shall not apply with respect to the taking of any marine mammal by any Indian, Aleut, or Eskimo who resides in Alaska and who dwells on the coast of the North Pacific Ocean or the Arctic Ocean if such taking—
Notwithstanding the preceding provisions of this subsection, when, under this chapter, the Secretary determines any species or stock of marine mammal subject to taking by Indians, Aleuts, or Eskimos to be depleted, he may prescribe regulations upon the taking of such marine mammals by any Indian, Aleut, or Eskimo described in this subsection. Such regulations may be established with reference to species or stocks, geographical description of the area included, the season for taking, or any other factors related to the reason for establishing such regulations and consistent with the purposes of this chapter. Such regulations shall be prescribed after notice and hearing required by section
1373 of this title and shall be removed as soon as the Secretary determines that the need for their imposition has disappeared. In promulgating any regulation or making any assessment pursuant to a hearing or proceeding under this subsection or section
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(b)(2) of this title, or in making any determination of depletion under this subsection or finding regarding unmitigable adverse impacts under subsection (a)(5) of this section that affects stocks or persons to which this subsection applies, the Secretary shall be responsible for demonstrating that such regulation, assessment, determination, or finding is supported by substantial evidence on the basis of the record as a whole. The preceding sentence shall only be applicable in an action brought by one or more Alaska Native organizations representing persons to which this subsection applies.