Previous studies of shipwrecks in the United Kingdom and the Red Sea have shown that such artificial reefs often create new and different types of habitat than natural reefs.

Fish thrive on WWII shipwrecks

In 2016, the National Oceanic and Atmospheric Administration (NOAA) undertook a closer examination of the wrecks of the German U-boat U-576 and the Nicaraguan freighter SS Bluefields, using glass-domed submersibles. The two historically significant and deep (200m) shipwrecks sank near one another on the continental shelf of North Carolina, USA, during World War II.

SS Kalle was a sister ship to SS Cotopaxi.

Wreck identified 95 years after ship's mysterious disappearance

The SS Cotopaxi—an American merchant steamer—left Charleston, South Carolina, on Nov. 29, 1925, with a cargo of coal,  destined for Havana, Cuba, but the vessel didn't make it far. The vessel vanished without a trace and the fate of the Cotopaxi and the 32 people on board has long puzzled experts.