By mimicking natural river conditions, <a href="https://www.ecoreefproject.com/farming%20&amp;%20ecoreefs.htm">ecodams</a> provide the necessary habitats for fish to breed and grow.</div><h2 style="clear: both">Ecoreefs: Underwater Gardens</h2><div style="clear: both">Ecoreefs, on the other hand, are <a href="https://www.ecoreefproject.com/pathway%20to%20creative%20reuse.htm" target="_blank" rel="noopener">artificial reef structures</a> that promote marine biodiversity.