Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time.
12/19/2018 8:10:44 AM
Photographer: Dr. James P. McVey
Affiliation: NOAA Sea Grant Program
Date: Aug-69
Location: Pokai Bay, Oahu
Subject: Coral Reefs
Subject: Marine Biologist
Subject: Artificial Reef
Subject: Diving