This is a picture grabbed off of a video that was taken on a dive conducted by Fisheries and Oceans divers in November, 1992 in the same area that the Reef Ball reef is now located. This picture shows what the ocean floor looked like before the reef was constructed. The ecosystem supported only those plants and animals that could survive on the relatively flat sand/mud bottom
This picture shows two red rock crabs (male holding a female under him in a "breeding grasp") on an algae (seaweed) covered reefball. The male crab holds the female until she molts (sheds her shell) at which time they mate. The female holds the fertilized eggs with her abdomen until they hatch. Photo by Dave Zaharychuk and Rob Russell
As seen in the previous picture of the crabs mating, the Reef Ball reef has already become a bit of a nursery. This picture shows squid egg masses that were laid inside one of the Reef Balls. Each of the finger-like egg masses was laid by one squid, so you can get an idea of how many squids were around to produce all of these egg masses. The 15 cm squid come into shallow water to lay their eggs. Photo by Dave Zaharychuk and Rob Russell