Vancouver missed a chance to move into a share of the lead in the Northwest Division with Colorado and Calgary.
Marchant scored the first of three opening-period goals at 10:53 with one of the assists on the score coming from goaltender Jonas Hiller.
Roberto Luongo gave up four goals on 19 shots before being replaced in the third period by Curtis Samford.
Anaheim won for the second time in five games. This was the third straight game in which Marchant scored a goal.
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