Starting Sunday, the Steamship Authority is reducing its schedule of ferry trips between Woods Hole and Martha’s Vineyard and between Hyannis and Nantucket, according to an announcement from the boat line Friday evening.

“The schedules are in response to a noted decline in passenger and vehicular traffic on board its vessels this week, as well as in anticipation of lowered demand for the foreseeable future,” SSA spokesman Sean Driscoll said in a statement.

The new schedule eliminates the 6 a.m., 6:15 p.m. and 8:30 p.m. daily runs from Vineyard Haven and the 5 p.m., 7:30 p.m. and 9:45 p.m. Woods Hole departures.

The modified schedule is currently set to run from March 22 through April 2, but could be extended or cut back as circumstances warrant, according to the statement.

The modified schedules for the Vineyard and Nantucket are posted on the Steamship Authority website: steamshipauthority.com/schedules