Sea urchin frequency and diameters as surveyed in Sitka Sound and Torch Bay, Alaska

This dataset is part of a suite of studies conducted in Southeast Alaska to determine how benthic communities respond to variable environmental conditions. In an effort to determine how temperature and carbonate chemistry combine to affect primary consumer bioenergetics and research the indirect effects of ocean acidification and warming on primary consumers, the sea urchin population was investigated. The frequency of occurrence and test diameter was recorded for sea urchins at Sitka Sound and Torch Bay, Alaska from 1988 to 2019.