Redox oscillation and benthic nitrogen mineralization within burrowed sediments: An experimental simulation at low frequency

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Sökning: WFRF:(Aller R. C) > Redox oscillation a...

LIBRIS Formathandbok (Information om MARC21)

Fältnamn	Indikatorer	Metadata
000		03627naa a2200553 4500
001		oai:gup.ub.gu.se/239773
003		SwePub
008		240528s2016 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://gup.ub.gu.se/publication/2397732 URI
024	7	a https://doi.org/10.1016/j.jembe.2016.05.0032 DOI
040		a (SwePub)gu
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Gilbert, F.4 aut
245	1 0	a Redox oscillation and benthic nitrogen mineralization within burrowed sediments: An experimental simulation at low frequency
264	1	b Elsevier BV,c 2016
520		a Possible effects of sediment ventilation by benthic organisms on the nitrogen cycle were investigated using an experimental setup that mimicked stable or relatively low frequency oscillating redox conditions potentially found in bioturbated deposits. Three different conditions inside burrowed sediments were simulated using 2 mm thick sediment layers: 1) continuously oxic sediment exposed to oxygenated overlying bottom water (e.g., burrow walls, surface sediment), 2) continuously anoxic sediment out of reach from either O-2 or NO3- diffusion and 3) the lining/boundary of burrow structures or sediment pockets (e.g., excavated during feeding) subject to intermittent irrigation and redox fluctuations over several day timescales. Results demonstrated that intermittent redox fluctuations allowed sustained denitrification and episodic nitrification, whereas significant denitrification and both nitrification and denitrification were absent after similar to 5-10 days from continuously oxidized and anoxic zones respectively. Intermittent redox oscillations enhance metabolic diversity, magnify loss of dissolved inorganic N to solution, and permit sustained coupling between ammonification, nitrification, and denitrification despite lack of a stable stratified oxic-anoxic redox structure. Even relatively low frequency redox oscillations induce greater N loss compared to sediment that is continuously exposed to oxic and anoxic conditions.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
653		a Bioturbation
653		a Redox oscillation
653		a Nitrogen cycle
653		a Burrow ventilation
653		a Experimental design
653		a Simulation
653		a mediterranean coastal sediments
653		a fresh-water sediments
653		a marine-sediments
653		a in-situ
653		a estuarine sediment
653		a nitrate reduction
653		a oxide
653		a production
653		a organic-matter
653		a callianassa-subterranea
653		a temporal
653		a variability
653		a Environmental Sciences & Ecology
653		a Marine & Freshwater Biology
700	1	a Hulth, Stefan,d 1965u Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology4 aut0 (Swepub:gu)xhulst
700	1	a Grossi, V.4 aut
700	1	a Aller, R. C.4 aut
710	2	a Göteborgs universitetb Institutionen för kemi och molekylärbiologi4 org
773	0	t Journal of Experimental Marine Biology and Ecologyd : Elsevier BVg 482, s. 75-84q 482<75-84x 0022-0981
856	4	u http://manuscript.elsevier.com/S0022098116300831/pdf/S0022098116300831.pdf
856	4 8	u https://gup.ub.gu.se/publication/239773
856	4 8	u https://doi.org/10.1016/j.jembe.2016.05.003

Hitta via bibliotek

Journal of Experimental Marine Biology and Ecology (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

Hitta mer i SwePub

Av författaren/redakt...: Gilbert, F.; Hulth, Stefan, 1 ...; Grossi, V.; Aller, R. C.

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Geovetenskap och ...

Artiklar i publikationen: Journal of Exper ...

Av lärosätet: Göteborgs universitet

Sök utanför SwePub

Sök vidare i:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se