From oil rigs to oyster shell, 12 things to know about artificial reefs

Summary
Artificial reefs range from sunken warships to subway cars and concrete modules; here are 12 reef types, uses and debates beginners should understand
Description from Quartz.
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From oil rigs to oyster shell, 12 things to know about artificial reefs
Artificial reefs range from sunken warships to subway cars and concrete modules; here are 12 reef types, uses and debates beginners should understand
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