The commissioner may not require or authorize a fishway or fish bypass structure at a dam on the outlet of Sebec Lake in the Town of Sebec or at a dam on the Sebec River in the Town of Milo that would allow the upstream passage of an invasive fish species known to be present downstream in the Piscataquis River or Penobscot River drainage. For the purposes of this section, “invasive fish species” means those invasive fish species identified in the action plan for managing invasive aquatic species developed pursuant to Title 38, section 1872.