New Ocean Zone Discovered!The newly recognized rariphotic zone ranges from 130 meters to at least 30
New Ocean Zone Discovered!The newly recognized rariphotic zone ranges from 130 meters to at least 309 meters (427-1,014 feet). It is too deep for corals with photosynthetic algae to grow, and it is also too deep for even the specialized SCUBA equipment used to explore mesophotic reefs. Submersibles and remotely operated vehicles can explore the region, but they are expensive and normally used to scope out even deeper depths of the ocean. As a result, most reef researchers seldom make it to the rariphotic zone. https://ocean.si.edu/new-ocean-zone-described-help-submersible -- source link
#discovery#submersibles#smithsonian