In 2001, five existing concrete blocks were placed with 5 cubic marine blocks (1 x 1 x 1m). The blocks were placed on relatively flat areas of sea floor scattered across this terrain. Scuba-diving observations and measurements were used to count the number of Ecklonia cava and Sargassum plants and other attached organisms on each block until April 2006. Marine blocks contained CaCO3 and iron to enhance kelp growth.
Adult Kelp Density