Results 31 to 40 of about 10,967 (253)

Dissolved organic matter in the northwestern Pacific marginal seas: Insight into the distribution of its optical properties

Frontiers in Marine Science, 2023
Dissolved organic carbon (DOC) and the optical properties of dissolved organic matter (chromophoric- and fluorescent dissolved organic matter; CDOM and FDOM) were measured to determine the distributions and drivers of DOM in the northwestern Pacific ...
Heejun Han, Hyung Bo Kim, Jeonghyun Kim, Guebuem Kim, Jeomshik Hwang, SungHyun Nam   +5 more
doaj   +1 more source

Nunataryuk field campaigns: understanding the origin and fate of terrestrial organic matter in the coastal waters of the Mackenzie Delta region [PDF]

Earth System Science Data, 2023
Climate warming and related drivers of soil thermal change in the Arctic are expected to modify the distribution and dynamics of carbon contained in perennially frozen grounds. Thawing of permafrost in the Mackenzie River watershed of northwestern Canada,
M. Lizotte, B. Juhls, B. Juhls, B. Juhls, A. Matsuoka, A. Matsuoka, P. Massicotte, G. Mével, D. O. J. Anikina, S. Antonova, G. Bécu, M. Béguin, S. Bélanger, T. Bossé-Demers, T. Bossé-Demers, L. Bröder, F. Bruyant, G. Chaillou, J. Comte, R.-M. Couture, R.-M. Couture, E. Devred, G. Deslongchamps, T. Dezutter, M. Dillon, D. Doxaran, A. Flamand, F. Fell, J. Ferland, J. Ferland, M.-H. Forget, M. Fritz, T. J. Gordon, C. Guilmette, A. Hilborn, R. Hussherr, R. Hussherr, C. Irish, F. Joux, L. Kipp, A. Laberge-Carignan, A. Laberge-Carignan, H. Lantuit, E. Leymarie, A. Mannino, J. Maury, P. Overduin, L. Oziel, L. Oziel, C. Stedmon, C. Thomas, L. Tisserand, J.-É. Tremblay, J. Vonk, D. Whalen, M. Babin   +55 more
doaj   +1 more source

Drinking water aromaticity and treatability is predicted by dissolved organic matter fluorescence

Water Research, 2022
Samples from fifty-five surface water resources and twenty-five drinking water treatment plants in Europe, Africa, Asia, and USA were used to analyse the fluorescence composition of global surface waters and predict aromaticity and treatability from fluorescence excitation emission matrices.
Marc Philibert, Simin Luo, Lavel Moussanas, Qingqing Yuan, Emmanuelle Filloux, Flavia Zraick, Kathleen R. Murphy   +6 more
openaire   +2 more sources

UV/PAR radiation and DOM properties in surface coastal waters of the Canadian shelf of the Beaufort Sea during summer 2009 [PDF]

Biogeosciences, 2013
Surface waters from the Beaufort Sea in the Arctic Ocean were evaluated for dissolved organic carbon (DOC), and optical characteristics including UV (ultraviolet) radiation and PAR (photosynthetically active radiation) diffuse attenuation (Kd), and ...
J. Para, B. Charrière, A. Matsuoka, W. L. Miller, J. F. Rontani, R. Sempéré   +5 more
doaj   +1 more source

Inner filter correction of dissolved organic matter fluorescence [PDF]

Limnology and Oceanography: Methods, 2013
The fluorescence of dissolved organic matter (DOM) is suppressed by a phenomenon of self‐quenching known as the inner filter effect (IFE). Despite widespread use of fluorescence to characterize DOM in surface waters, the advantages and constraints of IFE correction are poorly defined.
Dolly N. Kothawala, Kathleen R. Murphy, Colin A. Stedmon, Gesa A. Weyhenmeyer, Lars J. Tranvik   +4 more
openaire   +1 more source

Turnover time of fluorescent dissolved organic matter in the dark global ocean [PDF]

Nature Communications, 2015
Marine dissolved organic matter (DOM) is one of the largest reservoirs of reduced carbon on Earth. In the dark ocean (>200 m), most of this carbon is refractory DOM. This refractory DOM, largely produced during microbial mineralization of organic matter, includes humic-like substances generated in situ and detectable by fluorescence spectroscopy.
Catalá, T.S. (Teresa S.), Reche, I. (Isabel), Fuentes-Lema, A., Romera-Castillo, C. (Cristina), Nieto-Cid, M. (Mar), Ortega-Retuerta, E. (Eva), Álvarez, M. (Marta), Calvo, E. (Eva), Marrasé, C. (Cèlia), Stedmon, C.A., Álvarez-Salgado, X.A.   +10 more
openaire   +5 more sources

Seasonal dynamics of dissolved organic matter along an intertidal gradient in semi-arid mangrove soils (New Caledonia) [PDF]

Biogeosciences
Mangrove ecosystems play a key role in the global carbon cycle notably through the production, transformation, and export of dissolved organic matter (DOM).
N. Mouras, N. Mouras, C. Marchand, M. Mathian, H. Lemonnier, H. Lemonnier   +5 more
doaj   +1 more source

Biogeochemistry of the dissolved organic matter (DOM) in the estuarine rivers of Bangladesh–Sundarbans under different anthropogenic influences

Heliyon, 2022
The Bangladesh-Sundarbans is the Outstanding Universal Value (OUV) articulated by UNESCO, is under different anthropogenic stress. The present study focused on the status of estuarine biogeochemistry of the dissolved organic matter (DOM) of the ...
Nahin Mostofa Niloy, Mashura Shammi, Md. Morshedul Haque, Shafi M. Tareq   +3 more
doaj   +1 more source

Organic matter in aqueous soil extracts: Prediction of compositional attributes from bulk soil mid-IR spectra using partial least square regressions

Geoderma, 2022
Water-extractable organic matter (WEOM) is labile and a key component of soil organic matter. Thus, the prediction of soil WEOM concentration and composition-related characteristics is of great interest.
Alla Nasonova, Guy J. Levy, Oshri Rinot, Gil Eshel, Mikhail Borisover   +4 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source