When you are talking about something related to the sea eg
marine mammals
"Here is the marine forecast......."
Today we studied marine vegetation/marine Biology
you use marine to describe a fish
Marine is used as an adjective when it is describing something found in or produced by the sea. (Example: marine life, marine plants) Aquatic is of or relating to water. (Example: aquatic sports, aquatic animals, aquatic plants)
The term "marine" is used as an adjective to describe things related to the sea or ocean, while "aquatic" refers to anything related to water in general, including freshwater environments. You would use "marine" specifically when discussing oceanic contexts, such as marine life or marine ecosystems. In contrast, "aquatic" could apply to both freshwater and saltwater environments, like aquatic plants or aquatic habitats. Therefore, use "marine" when the focus is solely on the ocean and its inhabitants.
When you are talking about something related to the sea eg marine mammals "Here is the marine forecast......." Today we studied marine vegetation/marine Biology
The ocean is not aquatic, it is marine. Aquatic is freshwater. Marine is saltwater.
When you use it with a noun. eg marine park marine vegetation marine barometer
When writing a sentence
An adjective describes a noun, so when you write that "A dolphin is a marine mammal", you are using "marine" as an adjective. "Marine environment, marine vegetation, marine barometer" are all examples of using "marine" as an adjective.
Aquatic animal
Marine Biology - a person that studies in this feild is a Marine Biologist
Yes, aquatic is a noun, but is normally used as an adjective.
aquatic