Broyozoa, oysters, sponges on interior roof of concrete pipe.Community is characteristic of mature interior reef surface. You can see scrape marks from grazing fish on dark and light green colonies of bryozoa.
12/18/2018 9:28:22 AM
Photographer: Dr. James P. McVey
Affiliation: NOAA Sea Grant Program
Date: 7-Feb-69
Location: Hawaii, Pokai Bay, Oahu
Subject: Coral Reefs
Subject: Artificial Reef
Subject: Invertebrates