How do sea currents help disperse Pandanus seeds?

In the context of the Pandanales order, sea currents play a vital role in the dispersal of Pandanus (screw pine) seeds.

The fruits of many Pandanus species are heavy, ball-shaped or conelike aggregates formed by the coalescence of developing ovaries. These fruits contain hollow spaces that provide the necessary buoyancy for them to float on water. By drifting on sea currents, these fruits can be transported to new coastal locations, where they may eventually wash ashore and establish new populations. In addition to this water-based dispersal, the seeds of some species are also distributed by fruit-eating birds and bats.12