Replication data for: Long term monitoring of the rocky intertidal on Wizard Island in Barkley Sound

The exposed site is located on a 50m stretch of fixed rocky shore on the southwest side and is characterized by Egregia (feather-boa kelp), goose-necked barnacles and Alaria (brown alga). Fifteen transects were randomly selected at the sheltered site (tag numbers 7, 10, 11, 12, 15, 18, 21, 26, 34, 36, 38, 40, 42, 44, 48) and the exposed site (tag numbers 1, 3, 5, 11, 15, 17, 20, 23, 25, 32, 37, 40, 44, 46, 48). Sampling was done at tidal heights of 1, 1.5, 2, 2.5, 3 and 3.5m.

In 2009 tidal height of 0.5m was not sampled due to time constraints and limited low tide series. Quadrats of 25x25cm were used for percent cover of bare rock, algae, colonial and encrusting species. Quadrats of 25x25cm were also used for counts of invertebrates with the exception of seastars which were counted in 50x50cm quadrats.

To maintain consistency, all quadrats were positioned to the left and above each point on the transect (when facing away from the water). Data collected by students in the Coastal Biodiversity and Conservation course taught by Dr. Brian Starzomski and Dr.

Tom Okey with Teaching Assistant Christine Gruman July 27 – September 4, 2009.