Sentence examples for low oxygen zone from inspiring English sources

However much higher concentrations given to rats caused bone marrow toxicity and necrosis of the low oxygen Zone 3 part of the liver.

But animals like the predatory tunicate survive in these low oxygen zones because they have a low metabolic rate and extract oxygen efficiently.

The low-oxygen zone extends up and down the eastern Pacific coastline, and rising ocean temperatures may be indirectly increasing its spread, Dr. Gilly hypothesized.

Dr. Rabalais and her team have led the research efforts to date on the dead zone, also known as the hypoxic, or low-oxygen, zone.

The top-to-bottom thickness of the low-oxygen zone in that region has expanded by 85% during that time, the team reports tomorrow in Science.

As warming oceans cause these low-oxygen zones to expand, the Humboldt squid's range also grows.

It also listed possible methods of preventing their spread, including physically separating the waterways or blocking or killing organisms with chemicals, heat, "bubble curtains" or low-oxygen zones.

Separation supporters said the corps will likely eventually oppose separation as not feasible and instead favor "acoustic bubble" curtains, low-oxygen zones and other ways to kill or block species.

Under Intergovernmental Panel on Climate Change scenarios predicting atmospheric temperature increases of up to 4°C by the end of this century, the resulting ocean temperature increases would expand existing low-oxygen zones, the team reports online this week in Nature Geoscience.

One such study last year reported startling expansions of oceanic low-oxygen zones over the past half-century, though part of that development is due to agricultural pollution from streams and rivers.

Then there are regions of the coast where nutrient run-off is so bad that large portions of the oceans are dubbed "dead zones": low oxygen regions where algal blooms are common.