The marine term for the economic realm where water is 4 degrees Celsius is called the Benthic Zone. It is the ecological region at the lowest level of a body water.
Marine life is that which lives in any water environment such as lakes,rivers or oceans.
The phrase "Marine" is commonly used as a salt water term; but technically refers to anything living in, on, around, or having anything to do with a body of water.
A Merchant Marine is the term used to describe someone who works on a commercial ship transporting cargo via water.
"Biologist" is a very general term, referring to someone who studies any living organisms. A "marine biologist" is a type of biologist who studies organisms that inhabit a salt water environment (sometimes "marine" refers also to fresh water, but usually it is specific to salt water).
When a Marine "drops pack," it means his term of service is over.
Not necessarily in the commercial merchant fleet, but for the Merchant Marine, yes. The U.S. Merchant Marine is actually a branch of the Armed Forces.
Marine water is a term that is usually used to describe water that deals with the oceans or the sea. This water is at or near full salinity, or it contains the maximum amount of salt that water is capable of containing.
There isn't really a blanket term that refers to an animal that lives in salt water as opposed to freshwater. A lot of the time, salt water wildlife is simply referred to as 'aquatic'. The closest term you're likely to find is 'marine', ie 'a marine aquarium'. Sometimes the world 'saltwater' is used, ie 'a saltwater aquarium', 'a saltwater invertebrate'. The most accurate terms are likely to reference specific saltwater environments, ie 'a reef fish', because there is a lot of difference between the warm, shallow salt water over a tropical reef and the cold, deep, fast-moving water of the deep oceans.Another answer: The correct term is simply marine, which literally means 'of the sea.' Aquatic refers to water, both fresh water and salt water.
The term "BAM" is a derogatory term which stands for "Broad Assed Marine" and is used in reference to Women Marines.
Marine Pollutant
shocking.