All manner of concrete, steel, and stone rubble from dredging, demolition projects, and other construction is used as artificial reef materials. This material is generally available at very low cost or free from construction companies who are more than happy to get rid of it. Transportation costs determine where this material is used by the Reef Program.
Clinging Jellyfish - Gonionemus vertens very dangerous
This is a Pacific coast jellyfish that has been spotted along the East Coast for many years, but until recently has been uncommon. It is slightly larger than a quarter, about one inch in diameter. The sting of this jellyfish will send you to the hospital, not just people that are especially sensitive, but anyone. It is found in bays and inlets where it clings to seagrasses, it is not normally found in the open ocean. Your best protection against jellyfish stings is an exposure suit; even a lycra skin is thick enough to block the microscopic stingers.
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