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140 Things in the Ocean

 , October 26, 2021
The ocean is an interconnected body of water that covers approximately 70.8% of the Earth's surface. As the dominant feature of the planet that has an average depth of 2.29 miles, the ocean is mostly unexplored and mysterious. For example, it is thought to have around 2 million species of organism but only about 230,000 of these have been identified. The following are common examples of things, life and phenomenon found in the ocean.
Aircraft Wrecks
Algae
Aquatic Insects
Artificial Islands
Artificial Reefs
Atolls
Bacteria
Barnacles
Bays
Beaches
Bioluminescence
Boat Drones (Robotic Boats)
Bridges
Buoys
Clams
Coastal Infrastructure
Coastlines
Conch / Sea Snails
Continental Fault Lines
Continental Shelf
Coral
Crabs
Crustaceans
Currents
Cuttlefish
Divers
Docks
Dolphins
Driftwood
Dugongs
Eddies
Eels
Estuaries
Fish
Fishing Debris
Floating Islands
Floating Solar Panels
Floating Structures
Fossils
Fungi
Garbage Patches
Ghostnets
Giant Squid / Colossal Squid
Hurricanes
Hydrothermal Vents
Icebergs
Icebreakers
Islands
Isopods
Jellyfish
Kelp / Kelp Forests
Krill
Lagoons
Lobster
Manatee
Mangroves
Manta Ray
Marine Debris
Marine Iguana
Marine Microbes
Messages in Bottles
Meteorites
Mollusks
Nanoplastics
Ocean Plastic
Ocras
Octopuses
Offshore Aquaculture (Ocean Fish Farms)
Offshore Wind Farms
Oil Platforms
Organic Debris (e.g. Floating Coconuts)
Oysters
Penguins
Plankton
Polar Bears
Porpoises
Ports
Protozoa
Reefs
Ridges
Rocks
Rogue Waves
Sailboats / Boats
Salt Water
Saltwater Crocodiles
Sand
Sea Caves
Sea Ice
Sea Otters
Sea Snakes
Sea Wasps
Seabirds
Seagrass
Seagulls
Seahorses
Seals
Seas
Seaweed
Sediment
Sharks
Shells
Ship Graveyards
Shipping Containers Lost at Sea
Ships
Shipwrecks
Shrimp
Space Junk (Spacecraft Cemetery)
Sponges
Squid
Stingray
Submarine Cables
Submarine Canyons
Submarine Pipelines
Submarine-launched Nuclear Missiles
Submarines
Sunken Cities (Underwater Ruins)
Surfers
Tarpons
Tidal Turbines
Tide Pools
Tides
Torpedoes
Trenches
Tridents
Tsunami
Turtles
Undersea Rivers
Undersea Tunnels
Underwater Caves
Underwater Statues
Underwater Volcanoes
Urchin
Viruses
Water Pollution
Waterspouts
Wave Power Devices
Waves
Whales
Whirlpools
Worms
An eddy is a circular current that resembles a small whirlpool.
Ghostnets are nets that have been discarded or lost in the ocean by fishing operations.
The Earth has five oceans known as the Arctic, Atlantic, Indian, Pacific and Southern oceans. These are known collectively as the ocean, sea, great ocean or world ocean.
The five oceans were historically divided into the "Seven Seas" these are the Arctic, North Atlantic, South Atlantic, Indian, North Pacific, South Pacific and Southern oceans.
About 97% of the world's water is contained in oceans.
The word ocean comes from Oceanus, an Ancient Greek god that was considered a personification of the river that the Ancient Greeks believed circled the world. Oceanus was a Titan who had 3,000 daughters who were goddess-nymphs who protected the Earth's fresh water including clouds, rivers and springs.
The are 234,512 miles, or 377,412 kilometers, of ocean coastline on Earth.
The average depth of the oceans is about 2.29 miles or 3.69 kilometers.
The average salinity of the ocean is around 34.7‰.
The salinity of warm tropical parts of the ocean are as much as 37% and the salinity of its cold polar waters is as low as 28%.
There are an estimated 3 million shipwrecks on the ocean floor.
Viruses are the most abundant life form in the oceans.
Around a billion marine microbes live in a single liter (34 ounces) of water.
Microbes in the ocean supply more than half of the oxygen found in the atmosphere.
The 2017 United Nations Ocean Conference estimated that the oceans might contain more plastic than fish by weight by the year 2050.

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References

Hallwood, Paul, and Thomas J. Miceli. "Murky waters: The law and economics of salvaging historic shipwrecks." The Journal of Legal Studies 35.2 (2006): 285-302.

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