Sentences with phrase «anoxic conditions»

This inhibits oxidation of CH4 since methanotrophic bacteria responsible for this process can not function in anoxic conditions normally found in waterlogged land.

Although M. frappieri JAM7 does not grow under anoxic conditions with NO 3 −, which concurs with the absence gene cluster encoding a dissimilatory NO 3 − reductase, the occurrence of nirK may be associated with the detoxification mechanism.

This geographic distribution of anoxic conditions points towards the importance of paleogeography, basin restriction, and nutrient fluxes as key controls on the occurrence of extreme deoxygenation.

The study found that in April methane concentrations were low when bottom waters were fully oxygenated and increased as anoxic conditions set in.

2) Since permafrost terrain tends toward anoxic conditions, improved modeling of CO2e emissions will require accurate mapping of the relevant hydrology, and of soil and vegetative conditions.

- No turning of compost in our roughly 3 «x3 «x3» chambers, though units with very large chambers may need to have their contents turned to avoid anoxic conditions at the center of the pile.

Because of capillary action in the lower layer and the nearly anoxic conditions there, the oil remains trapped.

Recent projects have focused on understanding the controlling mechanisms for coccolithophore ecology, marine nitrogen fixation and the spread of anoxic conditions during Oceanic Anoxic Events of the Mesozoic.

Some microbes merged with hydrogen - producing microbes (probably multi-functional ancestral mitochondria) to become eukaryotes that later developed into multi-cellular «animals» that survive and breed in anoxic conditions, without oxygen (phylum Loricifera, which includes Spinoloricus at left — more).

«The fish appear to reduce their respiration rate, but they don't entirely switch everything off because they still show a classic escape response if they are touched, even when under anoxic conditions.

She found that in anoxic conditions, when there is no oxygen in the bottom layers of the Chesapeake Bay's waters, dissolved methane built up, probably coming from the mud, and when storms mixed up the invisible layers of the Bay's waters, the methane made it to the surface and into the atmosphere.

«The anoxic conditions have been present in this area for hundreds of years, but the large numbers of jellyfish are a recent occurrence, so their tolerance of their stinging tentacles is presumably a more recent adaptation, as is their use of jellyfish as a food source,» Braithwaite says.

An international research team lead by scientists from GEOMAR Helmholtz Centre for Ocean Research Kiel carried out a complex interdisciplinary study in the context of the Collaborative Research Project (SFB) 754 «Climate - Biogeochemistry Interactions in the Tropical Ocean» and discovered a process which explains the iron removal under anoxic conditions.

Thus, fossils sites preserving them are generally restricted to Lagerstätten having anoxic conditions.

Some specialized vascular plants, such as mangroves, can grow with their roots in anoxic conditions.

At the beginning of the Neoproterozoic era, ranging 1,000 to 541 million years ago, anoxic conditions in the ocean prevailed.

Likewise, as the more polar regions are the places which are warming up the quickest, this diminishes the ability of the oceans to absorb oxygen — which won't help the fish all that much and may result in hypoxic or anoxic conditions, but the last of these may benefit anaerobic bacteria.

The idea behind waste gasification is an attractive one: Take trash and subject it to extreme heat under anoxic conditions to produce syngas, a blend of carbon monoxide and hydrogen, which can be used as a fuel source.