Andrews et al. (2002) collected P. resedaeformis from waters off southeast Alaska with ages estimated over 100 years for sections near the heavily calcified base. Based on validated growth ring counts, growth of these corals ranged from 1.60 to 2.32 cm per year in height and was approximately 0.36 mm per year in diameter. These slow growth rates suggest that the fishery habitat created by these corals is extremely vulnerable to bottom fishing activities and may take over 100 years to recover.
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