The seafood industry, which is international in nature, could be seriously disrupted if Trump imposes a 25% tax on products from Canada. The incoming administration of President-elect Donald Trump is likely to bring big changes for one of the oldest sectors of the U.S. economy—seafood—and some in the industry believe the returning president will be more responsive to its needs.Economic analysts paint a more complicated picture, as they fear Trump’s pending trade hostilities with major trading partners Canada and China could make an already pricy kind of protein more expensive to consumers.