Altering the natural habitat

The Ocean Conservancy features an article from Blue Planet highlighting some of the problems with artificial reefs.

Artificial reefs can also be detrimental to the existing habitat. “To some people, it appears that a sandy ocean bottom is a wasteland with no value, so a reef would create a wonderful habitat,” Powell says. What people aren’t taking into account is that the sandy bottom is a natural habitat supporting ocean life. “Many artificial reefs are being put in place with little thought of how they affect the habitat that was originally there.”

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http://www.oceanconservancy.org/site/News2?page=NewsArticle&id=9366&news_iv_ctrl=0&abbr=bpm_