The aim of this study was to examine how Durvillaea spp. are adapted to the surf zone with its various degrees of wave exposure. This was mainly done by measuring drag forces on entire thalli in a flume and in the field and by quantifying the process of reconfiguration of the blade. Accompanying tests yielded information on the buoyancy, acceleration, and the way different forces act together in D. antarctica and D. willana. These findings were then related to a field survey of several morphological parameters.

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