Oxygen Minimum Zone (OMZ)
Metagenomic analysis of nitrogen and methane cycling in the Arabian Sea oxygen minimum zone
... In this study, we compared the functional diversity in two metagenomes retrieved from the Arabian Sea oxygen minimum zone. Using manually curated reference databases, we screened the datasets for ...
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Uptake of algal carbon and the likely synthesis of an "essential" fatty acid by Uvigerina ex. gr. semiornata (Foraminifera) within the Pakistan margin oxygen minimum zone: evidence from fatty acid biomarker and C-13 tracer experiments
... in oxygen-depleted settings, where they potentially play a significant role in the processing of organic ...Sea oxygen minimum zone ...
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Persistent millennial-scale link between Greenland climate and northern Pacific Oxygen Minimum Zone under interglacial conditions
... cific Oxygen Minimum Zone (OMZ) varied in-phase with the Northern Hemisphere high latitude climate on millennial timescales during the last glacial period, indicating the occur- rence of atmospheric ...
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Metabolic suppression during protracted exposure to hypoxia in the jumbo squid, Dosidicus gigas, living in an oxygen minimum zone
... the oxygen minimum zone (OMZ) of the Eastern Pacific ...reduced oxygen consumption and a limited anaerobic contribution to ATP production, suggesting the capacity for substantial metabolic ...
14
Modulation of the vertical particle transfer efficiency in the oxygen minimum zone off Peru
... Pacific oxygen minimum zone (in red with [O 2 ] minimal < 20 µmol kg −1 from WOA2013 ...the oxygen concentration at the mooring location (from WOA2013 climatology with the two sediment trap ...
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Oxygen at Nanomolar Levels Reversibly Suppresses Process Rates and Gene Expression in Anammox and Denitrification in the Oxygen Minimum Zone off Northern Chile
... Peruvian oxygen minimum ...Pacific oxygen min- imum ...ultra-low oxygen concentrations in oxy- gen minimum zones by the STOX ...
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Remineralization of particulate organic carbon in an ocean oxygen minimum zone
... ) oxygen concentrations 36 , and so vertical migration into the mesopelagic zone is reduced in ...and oxygen is thought to be one of the most important factors influencing the daytime depth of ...
9
The flow field of the upper hypoxic eastern tropical North Atlantic oxygen minimum zone
... shallow oxygen mini- mum at 100 m depth between 29 November 2009 and 28 Jan- uary ...low oxygen layers just below the mixed layer seem to be created by cyclonic and anticyclonic mode water eddies ...
15
Benthic archaea as potential sources of tetraether membrane lipids in sediments across an oxygen minimum zone
... Abstract. Benthic archaea comprise a significant part of the total prokaryotic biomass in marine sediments. Recent ge- nomic surveys suggest they are largely involved in anaerobic processing of organic matter, but the ...
18
Ventilation rates and activity levels of juvenile jumbo squid under metabolic suppression in the oxygen minimum zone
... Juvenile Humboldt squid, D. gigas (d’Orbigny 1835), (5.4–13.5g wet mass) were collected via dip net in the Gulf of California (27°N, 111°W; 28°N, 113°W), on the surface at night, in June 2011 (aboard the RV New Horizon, ...
10
Intensification and deepening of the Arabian Sea oxygen minimum zone in response to increase in Indian monsoon wind intensity
... both oxygen sup- ply through enhanced ventilation and oxygen demand via increased biological productivity, thus leading to an uncer- tain net ...on oxygen consump- tion, further add to the intricacy ...
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Composition and vertical flux of particulate organic matter to the oxygen minimum zone of the central Baltic Sea: impact of a sporadic North Sea inflow
... LD), 110 m and 180 m (Table 1) to estimate POM fluxes to and within the OMZ. 40 m was considered as the base of the euphotic zone based on photosynthetically active ra- diation measurements conducted during the ...
21
Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014
... Convergence Zone (ITCZ) migrates southwards and alongshore winds drive the maximum upwelling in the study area near 18 ◦ N (Mittelstaedt, 1983; Van Camp et ...
20
Controls on redox sensitive trace metals in the Mauritanian oxygen minimum zone
... Atlantic origin (South Atlantic Central Water, SACW) to the coastal upwelling region (e.g., Mittelstaedt, 1991, 1983; Peña-Izquierdo et al., 2015). In response to the changing winds, the eastern boundary circulation ...
26
Microbial ecology of anammox bacteria in estuarine and oxygen minimum zone environments
... However, the data appear to suggest, if anammox were capable of such a process, that the potential for organammox would be greater towards the freshwater end of the estuary, where non-Sc[r] ...
232
Sensitivity of the simulated Oxygen Minimum Zone to biogeochemical processes at an oligotrophic site in the Arabian Sea
... the screening analysis by computing the sensitivity of input parameters pooled in groups.. This was addressed by performing a Monte Carlo-based sensitivity 308.[r] ...
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Sources of dissolved iron to oxygen minimum zone waters on the Senegalese continental margin in the tropical North Atlantic Ocean: Insights from iron isotopes
... atmospheric versus benthic Fe inputs to the surface ocean of the tropical North Atlantic as an annual 616. mean remains uncertain[r] ...
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Zooplankton vertical distribution and migration off Central Peru in relation to the oxygen minimum layer
... the oxygen minimum layer (Saltz- man and Wishner ...upper zone of the oxygen minimum zone (Hidalgo et ...into oxygen- ated layers immediately above the oxygen ...
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Aerobic and anaerobic metabolism in oxygen minimum layer fishes: the role of alcohol dehydrogenase
... low- oxygen layer, spending daylight hours in the oxygen minimum zone and migrating upward into normoxic waters at ...the minimum zone, we tested the activity of four enzymes, ...
10
The effect of marine aggregate parameterisations on nutrients and oxygen minimum zones in a global biogeochemical model
... marine oxygen concentration and thus the volume of oxygen minimum zones (OMZs) that are of special relevance for ocean nutrient cycles and marine ecosystems and that have been found to expand faster ...
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