part of characteristic of has quality towards dioxygen marine water body sea water marine oxygen minimum zone http://orcid.org/0000-0002-3410-4655 envoPolar 2010-03-16T12:16:11Z Low oxygen rates are typically due to the rate of respiration being greater than the rate of oxygen resupply, and are not necessarily due to anthropogenic activity. A marine water mass which is characterized by having much lower than normal dissolved oxygen concentrations persistently. ENVO https://orcid.org/0000-0002-2908-3327 ENVO:01000065 ORCID:0000-0002-4366-3088 marine water mass hydroform decreased concentration dissolved