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  • Other Sources  (24)
  • Articles (OceanRep)  (24)
  • AGU (American Geophysical Union)  (8)
  • Institut für Polarökologie Kiel  (6)
  • Springer  (6)
  • Geophysics Laboratory
  • Taylor & Francis
  • Wiley
  • 2020-2022
  • 1985-1989  (24)
  • 1970-1974
  • 1965-1969
  • 1950-1954
  • 1890-1899
  • 1987  (24)
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  • Other Sources  (24)
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  • 2020-2022
  • 1985-1989  (24)
  • 1970-1974
  • 1965-1969
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  • 1
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    Molecular association of Cu, Zn, Cd and 210Po in the digestive gland of the squid Nototodarus gouldi (1987)
    Springer
    In:  Marine Biology, 95 (1). pp. 87-91.
    Details
    Publication Date: 2017-03-29
    Description: The squid Nototodarus gouldi (McCoy, 1888) was caught by bottom trawl in Port Phillip Bay, Australia in February 1985. The squid accumulates in its digestive gland high levels of trace metals, with up to 100 μg Cd g-1 dry tissue, 1 200 μg g-1 copper and 1 500 μg g-1 zinc and up to 24 Bq g-1 of the naturally occurring radionuclide polonium-210. The molecular binding of these elements in six squid was investigated using column chromatography. Two poorly resolved copper peaks were associated with proteins of average molecular weights of 11 500 and 18 000. The two squid containing the highest levels of cadmium in their digestive glands (44 and 88 μg g-1) had cadmium associated with a peak of molecular weight intermediate between the copper-binding peaks, but this peak was absent from squid containing lower levels of cadmium. Zinc was associated with ligands of less than 1 500 molecular weight. The 210Po eluted with proteins of greater than 70 000 molecular weight, and there was no evidence of binding to low molecular weight proteins. Different mechanisms appear to be involved in the binding and control of the four elements.
    Type: Article , PeerReviewed
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  • 2
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    Das Alfred-Wegener-Institut und die Zusammenarbeit mit den Universitäten (Zur Eröffnung des Polartages am 2.2.1987 in Kiel) (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung, 2 . pp. 12-21.
    Details
    Publication Date: 2017-08-08
    Type: Article , NonPeerReviewed
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  • 3
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    Arrow squids of the genjis Nototodarus in New Zealand waters: systematics, biology, and fisheries (1987)
    Taylor & Francis
    In:  New Zealand Journal of Marine and Freshwater Research , 21 . pp. 315-326.
    Details
    Publication Date: 2020-06-22
    Description: Two species of arrow squid, Nototodarus (Oegopsida: Ommastrephidae), are caught in New Zealand waters. The close similarity in most morphometric characters has lead to confusion over the status of the two species. They are distinguished by the number of pairs of suckers on the first right arm; adult males are distinguished by the number of proximal tubercles and the morphology of the distal part of the hectocotylised arm; fresh or frozen specimens can be identified by gel elec‐trophoresis of the enzyme glycerol‐3‐phosphate dehydrogenase. Nototodarus sloanii is found in southern waters and N. gouldi in more northerly waters around New Zealand as well as southern waters of Australia. Differences between the two species are described and notes presented on their biology, abundance, and exploitation.
    Type: Article , PeerReviewed
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  • 4
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    Statistical methods for describing seafloor topography (1987)
    AGU (American Geophysical Union)
    In:  Geophysical Research Letters, 14 (10). pp. 1061-1064.
    Details
    Publication Date: 2017-07-25
    Description: We present a method for objectively characterizing a swath of digitally sampled seafloor topography. Our method analyzes the distribution of surface slopes by compiling surface-normal vectors into a two-dimensional histogram using an equal-area projection. The direction of maximum variance (first principal axis) of the histogram is used to determine the azimuth of lineations in the topography, and the variance is used as a measure of seafloor roughness. We apply the method to short sections of Sea Beam swath data and find that the histogram parameters are effective in describing the behavior of the topography. In particular, similar patterns are observed for a sequence of histograms derived from data collected over the Mendocino and the Surveyor fracture zones in the northeast Pacific. Because the method does not require any data modification and is suitable for irregularly-shaped sample regions, it lends itself to real-time analysis.
    Type: Article , PeerReviewed
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  • 5
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    Fluorid Turnover im Adéliepinguin (Pygoscelis adeliae) und künftige Untersuchungen an Adéliepinguinen (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung (2). pp. 22-29.
    Details
    Publication Date: 2017-07-25
    Type: Article , NonPeerReviewed
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  • 6
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    Bearbeitung ökophysiologischer Datensätze von Untersuchungen an antarktischen Standorten (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung (2). pp. 40-44.
    Details
    Publication Date: 2017-07-25
    Type: Article , NonPeerReviewed
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  • 7
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    Die Zukunft der wissenschaftlichen Forschung unter dem Antarktisvertrag (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung (2). pp. 5-11.
    Details
    Publication Date: 2017-07-25
    Type: Article , NonPeerReviewed
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  • 8
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    Planktologische Untersuchungen am Eisrand und im Treibeis der Arktis (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung (2). pp. 45-51.
    Details
    Publication Date: 2017-07-25
    Description: Auf der Basis wirtschaftlicher und politischer Interessen haben ähnlich wie in der Antarktis auch in der Arktis die Forschungsaktivitäten in den letzten 10 Jahren sehr stark zugenommen. Im Vordergrund stehen die Prospektion und Ausbeutung von fossilen Brennstoffen, vor allem von Öl, aber auch der Ausbau der militärischen Sicherheit. Denn in der Arktis stehen sich die beiden großen Machtblöcke, USA und Sowjetunion, am nächsten gegenüber. Man hat wohl auch bald erkannt, daß die sogenannte angewandte Forschung in diesem nur unzureichend bekannten Terrain einer massiven Unterstützung durch die Grundlagenforschung bedurfte.
    Type: Article , NonPeerReviewed
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  • 9
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    Terrestrische Ökosysteme in der Antarktis (1987)
    Institut für Polarökologie Kiel
    In:  Mitteilungen zur Kieler Polarforschung (2). pp. 30-39.
    Details
    Publication Date: 2017-07-25
    Type: Article , NonPeerReviewed
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  • 10
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    Renewal rates of East Atlantic deep water estimated by inversion of 14C data (1987)
    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research - Oceans, 92 (C3). pp. 2953-2969.
    Details
    Publication Date: 2016-04-14
    Description: The renewal of the deep water of the East Atlantic and its large-scale internal circulation are studied on the basis of the distributions of potential temperature, silicate, ΣCO2, and 14C. An isopycnal multibox model including advection, mixing, and sources and sinks is set up and described. Tracer data are input for the model, and balance equations for the various properties for the boxes of the model serve as constraints for the determination of water fluxes, mixing coefficients, and source parameters. Extremal values for various model parameters that are consistent with the tracer data (satisfy the balance equations within the estimated tolerances) are calculated by linear programming techniques. 14C data are seen to be valuable in determining absolute flow rates. Model results confirm the importance of the Romanche Facture Zone for the renewal of east Atlantic deep water. Eastward flows through the Romanche Fracture Zone were found to be between 2.6 and 5.1 Sv. Flows through the Vema Fracture Zone amount to at most 20% of the Romanche Fracture Zone inflow. Contributions of Antarctic Bottom Water at the southern end of the East Atlantic (Walvis Ridge) and of Iceland Scotland Overflow Water at the northern end are very small (〈 5% of equatorial inflow). Diapycnal mixing coefficients are between 1 and 10 cm2/s, and values for the dissolution rates of silicate and carbon are in the expected range.
    Type: Article , PeerReviewed
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