Is not connected to a freshwater source

Saltwater

Photic zone

Seasonal Changes do not occur, endless winter

If all Primary Consumers were eradicated, an abundance of smaller life would appear, and many of the smaller consumers would eventually be eaten to extinction

If decomposers were all removed, there would likely be an abundance of large whale corpses near the sea floor

         Sand, Dirt, Water, Ice, Gravel, Brine Pools

Living:

         Polar Cod, Arctic Krill, Bowhead Whale, Jellyfish, Zooplankton, Seaweed, Seagrass, Red Algae, True Tulip Snail, Orca

Sea Monster's Primary Source of Food:

Mainly orca, squid, and small fish, may attack whales if desperate

Thick blubberous skin, large sturdy teeth, long fins, and a large tail
How adaptations help creature survive:

Thick blubber allows the creature to comfortably survive in freezing temperates, large teeth help with taking down animals with thick skin and can take lots of pressure without breakage, larges fins and tail make for quick movement and turning to chase whatever may be necessary