Oxygen loss in the ocean, termed deoxygenation, is a major consequence of climate change
and is exacerbated by other aspects of global change. An average global loss of 2% or more …

The sulfur cycle is an important, although understudied facet of today's modern oxygen
minimum zones (OMZs). Sulfur cycling is most active in highly productive coastal OMZs …

Water masses can become undersaturated with oxygen when natural processes alone or in
combination with anthropogenic processes produce enough organic carbon that is …

Coastal hypoxia (defined here as< 1.42 ml L− 1; 62.5 μM; 2 mg L− 1, approx. 30% oxygen
saturation) develops seasonally in many estuaries, fjords, and along open coasts as a result …

We review here the available information on methane (CH 4) and nitrous oxide (N 2 O) from
major marine, mostly coastal, oxygen (O 2)-deficient zones formed both naturally and as a …

Measurements of the N 2 produced by denitrification, a better understanding of non-
canonical pathways for N 2 production such as the anammox reaction, better appreciation of …

Observations along 10 shelf transects in 2012 near 10° N in the southeastern Arabian Sea
revealed the usual warm oligotrophic conditions during the winter monsoon and upwelling …

The Arabian Sea contains one of the three major open-ocean denitrification zones in the
world. In addition, pelagic denitrification also occurs over the inner and mid-shelf off the west …

The epoch of the Anthropocene, a period during which human activity has been the
dominant influence on climate and the environment, has witnessed a decline in oxygen …

Under certain conditions, sediment cores from coastal settings subject to hypoxia can yield
records of environmental changes over time scales ranging from decades to millennia …