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  • 1
    Electronic Resource
    Electronic Resource
    Phytoplankton growth and CO 2 (1993)
    [s.l.] : Nature Publishing Group
    Nature 363 (1993), S. 678-679 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RIEBESELL ET AL. REPLY - Turpin makes two important points pertinent to the question of CO2 limitation of phyto-plankton growth. With respect to his first comment, we agree that inorganic carbon use by the common marine di-atom species needs to be rigorously tested. With the exception of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/363678c0
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Mirror-script and left-handedness (1992)
    [s.l.] : Nature Publishing Group
    Nature 355 (1992), S. 118-119 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Leonardo da Vinci's famous sketches are accompanied by illegible notes which, viewed in a mirror, turn out to be neatly written Roman script. Reading and writing mirror script is very difficult for most people, so why did Leonardo go to the trouble? As a code, it is much too easy to crack, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/355118b0
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Microbial food webs: The ocean's veil (2002)
    [s.l.] : Nature Publishing Group
    Nature 419 (2002), S. 565-565 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ...Imagine being whisked in a flight of fantasy into the microbial world of the oceans' sunlit layer, and being able to see the smallest organisms on the planet running its largest ecosystem. At your new, micrometre-sized scale, water is so thick and viscous that attempting to swim through it would ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/419565a
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Balance: Mind-grasping gravity (2002)
    [s.l.] : Nature Publishing Group
    Nature 415 (2002), S. 481-481 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ...Imagine yourself standing at the edge of a precipice, looking down at its foot, and then crouching at the same place on all fours. The difference between the two sensations is the difference between being human and being a quadruped. Clearly, latent anxiety is inherent in the precarious, human ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/415481a
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    A watery arms race (2001)
    [s.l.] : Nature Publishing Group
    Nature 411 (2001), S. 745-745 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Imagine yourself in a light forest looking upwards, seeing in your mind's eye only the chlorophyll-bearing cells of the canopy floating in mid-air, free from the attachment of leaves, twigs, branches and trunks. Now forget the forest and the trees, and see only blurred clouds of tiny green cells ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35081210
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Importance of iron for plankton blooms and carbon dioxide drawdown in the Southern Ocean (1995)
    [s.l.] : Nature Publishing Group
    Nature 373 (1995), S. 412-415 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The first iron experiments in the Weddell-Scotia Sea5'6 and the Ross Sea7 have shown stimulation of growth by iron; however, other limitations (light and grazing5'6'10'11) were also at play in these near-shore, neritic12 waters where dissolved Fe concentrations4'13'20 commonly exceed ~1 nM, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/373412a0
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Making sense (2004)
    [s.l.] : Nature Publishing Group
    Nature 432 (2004), S. 21-21 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ...Aristotle argued that human beings have five senses at their disposal. Although various other sense organs have come to light since then, this antique dogma still constrains popular imagination. The term ‘sixth sense’ resonates with instinct and metaphysics, implying that although ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/432021a
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Polar ocean ecosystems in a changing world (2005)
    [s.l.] : Nature Publishing Group
    Nature 437 (2005), S. 362-368 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Polar organisms have adapted their seasonal cycles to the dynamic interface between ice and water. This interface ranges from the micrometre-sized brine channels within sea ice to the planetary-scale advance and retreat of sea ice. Polar marine ecosystems are particularly sensitive to climate ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature04161
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    Paper (German National Licenses)
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  • 9
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    Deep carbon export from a Southern Ocean iron-fertilized diatom bloom (2012)
    Nature Publishing Group
    In:  Nature, 487 (7407). pp. 313-319.
    Details
    Publication Date: 2019-09-23
    Description: Fertilization of the ocean by adding iron compounds has induced diatom-dominated phytoplankton blooms accompanied by considerable carbon dioxide drawdown in the ocean surface layer. However, because the fate of bloom biomass could not be adequately resolved in these experiments, the timescales of carbon sequestration from the atmosphere are uncertain. Here we report the results of a five-week experiment carried out in the closed core of a vertically coherent, mesoscale eddy of the Antarctic Circumpolar Current, during which we tracked sinking particles from the surface to the deep-sea floor. A large diatom bloom peaked in the fourth week after fertilization. This was followed by mass mortality of several diatom species that formed rapidly sinking, mucilaginous aggregates of entangled cells and chains. Taken together, multiple lines of evidence—although each with important uncertainties—lead us to conclude that at least half the bloom biomass sank far below a depth of 1,000 metres and that a substantial portion is likely to have reached the sea floor. Thus, iron-fertilized diatom blooms may sequester carbon for timescales of centuries in ocean bottom water and for longer in the sediments.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: text
    DOI: 10.1038/nature11229
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 10
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    Unknown
    The effect of sediment flushing by density displacement of interstitial water on pelagic primary production and microbial activity (1976)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-18
    Description: Nutrient and oxygen levels and ratios, primary production and data on bacterial activity recorded during an enclosure experiment carried out in July/August 1974 in Kiel Bight are presented and discussed. Considerable amounts of nutrients were released from the sediments due to density displacement of interstitial water and this was found to have a direct effect on phytoplankton production. Ammonia levels outside the enclosure were low and, in contrast to other nutrients and oxygen which were highly correlated with each other, ammonia showed no correlation with any other parameter. Presumably, ammonia released from the sediments escaped detection due to rapid uptake by phytoplankton. Reactive nitrogen, specifically ammonia thus seemed to be the limiting factor for primary production during the experiment. Sediment flushing also led to increased bacterial numbers and activity in the water column, however, this effect could only be measured inside the enclosure. These aspects of sediment/water interaction and their effect on the dynamics of shallow coastal ecosystems are discussed.
    Type: Article , NonPeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - without review
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