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Artificial reef - Wikipedia
What is an artificial reef? - NOAA's National Ocean Service
Artificial Reefs - MarineBio Conservation Society
Artificial Reefs: What works and what doesn’t
What are Artificial Reefs? - National Marine Sanctuary Foundation
10 of the World's Most Spectacular Artificial Reefs - Treehugger
Artificial Reefs - Podcast: Episode 75 - NOAA's National ...