What's a Wrack Line?

The wrack zone or wrack line is a coastal feature where organic material and other debris is deposited at high tide. This zone acts as a natural input of marine resources into a terrestrial system, providing food and habitat for a variety of coastal organisms.

What is the meaning of wrack line?

The wrack zone or wrack line is a coastal feature where organic material (e.g kelp, seagrass, shells) and other debris is deposited at high tide.

What is the importance of the wrack line?

Once established, the wrack line provides shelter for a variety of animals such as insects, crabs, and amphipods thus making it a vital component of the coastal ecosystem. In addition, wrack lines serve as a food source for a variety of animals including shorebirds and raccoons.