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Discovery of first active seep in Antarctica provides new understanding of methane cycle（图）
active seep Antarctica new understanding methane cycle
2020/7/31
The discovery of the first active methane seep in Antarctica is providing scientists with a new understanding of the methane cycle, and the role methane found in this region may play in warming the pl...
Deep-sea worms and bacteria team up to harvest methane（图）
Deep-sea worms bacteria team harvest methane
2020/4/10
Scientists at Caltech and Occidental College have discovered a methane-fueled symbiosis between worms and bacteria at the bottom of the sea, shedding new light on the ecology of deep-sea env...
Ocean Waters Prevent Release Of Ancient Methane（图）
Ocean Waters Prevent Release Ancient Methane
2018/2/1
Ocean sediments are a massive storehouse for the potent greenhouse gas methane.Trapped in ocean sediments near continents lie ancient reservoirs of methane called methane hydrates. These ice-like wate...
New Study Explains Mysterious Source of Greenhouse Gas Methane in the Ocean
Mysterious Source Greenhouse Gas Methane the Ocean
2016/11/29
For decades, marine chemists have faced an elusive paradox. The surface waters of the world’s oceans are supersaturated with the greenhouse gas methane, yet most species of microbes that can generate ...
Microbes, macrofauna, and methane: A novel seep community fueled by aerobic methanotrophy
Microbes macrofauna methane
2014/4/2
During the discovery and description of seven New Zealand methane seep sites, an infaunal assemblage
dominated by ampharetid polychaetes was found in association with high seabed methane emission. Th...
Characterization of stable isotope fractionation during methane production in the sediment of a eutrophic lake, Lake Dagow, Germany
stable isotope fractionation methane production in the sediment eutrophic lake Lake Dagow Germany
2014/4/18
We measuredd13CofCO2,CH4, and acetate-methyl in profundal sediment of eutrophic Lake Dagow by incubation experiments in the presence and absence of methanogenic inhibitors chloroform, bromoethane sulf...
Transport and consumption of oxygen and methane in different habitats of the Ha˚kon Mosby Mud Volcano (HMMV)
Transport oxygen methane
2014/4/17
The Ha˚kon Mosby Mud Volcano is a highly active methane seep hosting different chemosynthetic
communities such as thiotrophic bacterial mats and siboglinid tubeworm assemblages. This study focus...
Role of sulfate reduction and methane production by organic carbon degradation in eutrophic fjord sediments (Limfjorden, Denmark)
Role of sulfate reduction methane production organic carbon degradation eutrophic fjord sediments
2014/4/17
The anaerobic mineralization of buried organic matter through sulfate reduction and methanogenesis was studied in 2-m-long piston cores of organic-rich, silty-clay sediment from two sites in Limfjorde...
A methane bubble curtain in meromictic Sakinaw Lake, British Columbia
A methane bubble curtain meromictic Sakinaw Lake, British Columbia
2014/4/17
Hydroacoustic surveys in meromictic Sakinaw Lake found an approximate 20-m-wide dual-column bubble curtain originating from a depth of 42–60 m all around the main basin at the interface between the ch...
Potential carbon fixation via methane oxidation in well-oxygenated riverbed gravels
via methane oxidation well-oxygenated riverbed gravels
2014/4/16
Due to a combination of local methanogenesis and high background concentrations in the groundwater, water
in the River Lambourn is 51 times supersaturated with methane (162 nmol CH4 L21
). Pore-wate...
Evidence for the role of methane-derived carbon in a free-flowing, lowland river food web
a free-flowing methane-derived carbon
2014/4/17
We measured the d13
C values of dominant primary consumers and their potential food sources in a
groundwater-fed lowland river. The d13
C of most consumers, such as Gammarus and Simulium, reflected...
Characterization of methanogenic Archaea and stable isotope fractionation during methane production in the profundal sediment of an oligotrophic lake (Lake Stechlin, Germany)
methanogenic Archaea stable isotope fractionation during methane production profundal sediment an oligotrophic lake
2014/4/22
The methanogenic archaeal community, methane production, and carbon isotopic fractionation were studied in the profundal sediments of oligotrophic Lake Stechlin. Because the water column of oligotroph...
Sources and sinks of methane in Lake Baikal: A synthesis of measurements and modeling
Lake Baikal measurements modeling
2014/4/22
We studied the methane (CH4) budget of Lake Baikal, the most voluminous lake in the world and the only
freshwater body with known occurrences of methane hydrates in the sediments. CH4 concentrations ...
Enhanced methane oxidation in an estuarine turbidity maximum
Enhanced methane oxidation estuarine turbidity maximum
2014/4/22
Methane and suspended particulate matter (SPM) concentrations, monitored bimonthly during one hydrological year (2003-2004) along 70 km transects in the tidal regions of the Garonne and Dordogne river...
Experimental d13 C evidence for a contribution of methane to pelagic food webs in lakes
methane to pelagic food webs Experimental
2014/5/5
We tested the hypothesis that low stable carbon isotope (d13
C) values commonly observed for zooplankton in
humic lakes are due to their feeding on isotopically light methane-oxidizing microbes, and...