There are vulnerable marineecosystems down there that will take a long time to recover - tens or hundreds of years.
Times, Sunday Times (2010)
The dynamics of marineecosystems remain little understood so the impact of degraded plastic has yet to be assessed.
Times, Sunday Times (2008)
The damage we are doing to the sea bed affects the whole marineecosystem.
Times, Sunday Times (2009)
Definition of 'ecosystem'
ecosystem
(iːkoʊsɪstəm, USekə-)Explore 'ecosystem' in the dictionary
countable noun
An ecosystem is all the plants and animals that live in a particular area together with the complex relationship that exists between them and their environment.
[technical]
Definition of 'marine'
marine
(məriːn)Explore 'marine' in the dictionary
adjective [ADJECTIVE noun]
Marine is used to describe things relating to the sea or to the animals and plants that live in the sea.