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  • Nature Publishing Group  (9)
  • Inter Research  (2)
  • Pergamon Press  (2)
  • American Association for the Advancement of Science  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Fluxes of biogenic components from sediment trap deployment in circumpolar waters of the Drake Passage (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 145-147 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Results are from the first deployment of sediment traps in Antarctic waters. Our traps, with a collection area of 314 cm2 (ref. 14), were attached to a moored array located at 6054.6' S and 5706.0' W in 3,625 m of water depth for 52 days from 2 December 1980 to 25 January 1981. During that time the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/299145a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Particulate organic carbon flux in the oceans—surface productivity and oxygen utilization (1980)
    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 260-263 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The relationship is based on flux data compiled from particle traps installed throughout the world's oceans7'19 by many investigators and from annual mean organic carbon production rates of the respective surface waters20"29 (Table 1). In a few cases biological production rates were determined at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/288260a0
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of microbe activity (1988)
    [s.l.] : Nature Publishing Group
    Nature 333 (1988), S. 17-18 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ORGANIC matter exists in many forms in the oceans - as detritus and microbes, which can be suspended or sinking, and also as dissolved organic matter. The way these pools interact is influenced by, and influences, the distribution of nutrients and oxygen dissolved in the water column. One point of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/333017a0
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  • 4
    Electronic Resource
    Electronic Resource
    Palaeoceanography: Biomarkers for ancient climates (1986)
    [s.l.] : Nature Publishing Group
    Nature 320 (1986), S. 107-108 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ENVIRONMENTAL conditions of growth, particularly ocean temperature, are faith-fully recorded by the coccolithophorids - widely distributed marine phytoplankton. The record lies in the relative abundance of long-chain alkenones - complex orga-nic molecules of the lipid bilayer which control the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/320107a0
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  • 5
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    Palaeoceanography: Biomarkers for ancient climates (1986)
    Nature Publishing Group
    In:  Nature, 320 (6058). pp. 107-108.
    Details
    Publication Date: 2016-03-01
    Type: Article , PeerReviewed
    Format: text
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  • 6
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    Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization (1980)
    Nature Publishing Group
    In:  Nature, 288 (5788). pp. 260-263.
    Details
    Publication Date: 2016-03-01
    Description: Organic detritus passing from the sea surface through the water column to the sea floor controls nutrient regeneration, fuels benthic life and affects burial of organic carbon in the sediment record. Particle trap systems have enabled the first quantification of this important process. The results suggest that the dominant mechanism of vertical transport is by rapid settling of rare large particles, most likely of faecal pellets or marine snow of the order of 〉200 μm in diameter, whereas the more frequent small particles have an insignificant role in vertical mass flux4–6. The ultimate source of organic detritus is biological production in surface waters of the oceans. I determine here an empirical relationship that predicts organic carbon flux at any depth in the oceans below the base of the euphotic zone as a function of the mean net primary production rate at the surface and depth-dependent consumption. Such a relationship aids in estimating rates of decay of organic matter in the water column, benthic and water column respiration of oxygen in the deep sea and burial of organic carbon in the sediment record.
    Type: Article , PeerReviewed
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  • 7
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    3He in the Bransfield Strait waters: indication for local injection from back-arc rifting (1988)
    Pergamon Press
    In:  Deep Sea Research Part A: Oceanographic Research Papers, 35 (12). pp. 1919-1935.
    Details
    Publication Date: 2020-08-04
    Description: Helium data from the waters of the Bransfield Strait, the southern Drake Passage and the northwestern shelf of the Weddell Sea are presented. The 3He profiles from the eastern and central basins of the Bransfield Strait show maxima (δ3He ≈ 7%) below the sill depths that separate the strait from the surrounding open ocean. The 3He excess is interpreted as a local injection of a 3He-rich helium component into the deep waters of the Bransfield Strait from backarc rifting. Tritiogenic 3He and excess 3He from mixing with Circumpolar Deep Water are excluded as possible sources. The estimated 3He/4He ratio of the injected helium component (2.4–5.0 × 10−6) is less than that of pure mantle helium and may contain radiogenic helium from continental crustal material which underlies the Bransfield Strait.
    Type: Article , PeerReviewed
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  • 8
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    Groundwater seepage in the marine environment. Role for mass flux and bacterial activity (1999)
    Inter Research
    In:  Marine Ecology Progress Series, 178 . pp. 169-177.
    Details
    Publication Date: 2018-05-08
    Description: In Eckernförde Bay (western Baltic Sea) pockmark structures are induced by groundwater seeping out of the sediment. On 3 occasions in winter and spring 1993-94 we investigated the influence of groundwater on the reduction of salinity, on porewater chemistry, and on bacterial activities (methane oxidation and sulphate reduction). In 2 out of 3 sampling campaigns groundwater discharge could be detected. The concentration gradients of Cl- and SO4= are moved towards the sediment surface by the vertical advection of groundwater during seep times. Without groundwater discharge the porewater chemistry resembled the control site. Compared to the control site, the methane oxidation and sulphate reduction rates were elevated at the pockmark site, reaching maximum values of 49 and 269 µmol l-1 d-1 respectively. The groundwater venting from the pockmark had an end member composition of 80 mM Na+, 1.0 mM Ca++ and was depleted in Mg++. Due to mixing of these major cations along the groundwater/seawater interface, no CaCO3 precipitation was found around the pockmark site.
    Type: Article , PeerReviewed
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  • 9
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    Salty brines on the Mediterranean sea floor (1997)
    Nature Publishing Group
    In:  Nature, 387 . pp. 31-32.
    Details
    Publication Date: 2017-02-28
    Type: Article , PeerReviewed
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  • 10
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    Fluxes of biogenic components from sediment trap deployment in circumpolar waters of the Drake Passage (1982)
    Nature Publishing Group
    In:  Nature, 299 (5879). pp. 145-147.
    Details
    Publication Date: 2019-01-21
    Description: Circumpolar surface waters dominate the circulation of the Southern Ocean and sustain one of the ocean's largest standing stocks of biomass thereby producing a significant output of biogenic components, mainly diatoms, to the bottom sediments. Generally transit of biogenic matter from the sea surface to the sea floor affects nutrient regeneration fuels benthic life and transfers signals to the sediment record1–5. Reliable quantification of the relationship between biological production, fractionation of skeletal and tissue components and bottom sediment accumulation depends on direct vertical flux measurements from sediment trap deployments6–9, which have proved to be most scientifically productive10–13. We now present data on vertical mass fluxes from the Southern Ocean and evidence for strong biogeochemical fractionation between organic carbon-, nitrogen- and phosphorus-containing compounds, siliceous and calcareous skeletal remains, and refractory aluminosilicates.
    Type: Article , PeerReviewed
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