boatage

noun4

1. •
   Conveyance, chiefly of goods, by boat.
2. •
   A charge for transporting goods or people by boat; (countable) an instance of this.

   • Droict de Rivage. Shorage, or Boatage; the Custome, or Toll for vvine, or other vvares, put vpon, or brought from, the vvater, by boats. — 1611
3. •
   The total capacity of a number of boats, especially of lifeboats on a ship.
4. •
   (no longer used) Boats collectively.