What Is A Wrack line? | In The Field
The wrack line is the area of debris that washes up on sandy beaches during high tide. This debris can include eel grass, different species of seaweed, shells, feathers, and garbage.
The wrack line is a great area for beachcombing and serves some important ecological functions. The wrack line serves as an important food source and habitat for many invertebrate species. These species in turn, are the main part of the diet of many shorebirds. The wrack serves other important ecological services by providing nutrients to surrounding plants and ecosystems as well as aiding in the formation of sand dunes.
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For more information check out the sources used to make this video:
2018. Explore Beaches: Wrack Community. The Regents of the University of California. Santa Barbara, California, USA. Accessed July 31st 2018. http://explorebeaches.msi.ucsb.edu/sa...