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Documenting a wreck on your own can be OK as long as you do not touch anyhing. The world's largest brackish water sea, located in northern Europe.
The low salinity affects not only teredo navalis and shipwrecks, but also all animal life, where the fish are of different species.
Successful work requires bright sunlight over a calm sea with clear water. The physical setting, location, and cultural association of artefacts and features within an archaeological site. Photo of astrolabe from the Batavia, courtesy Western Australia Maritime Museum. Autonomous Underwater Vehicles are underwater robots that are not remote controlled and operate with artificial intelligence. These are recreational scuba divers and amateur underwater archaeology groups who give invaluable help to underwater archaeologists.The heavier salt water stays in the deep, usually below 40 m depth (in the south) and 80 m depth (in the north).