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  • Other Sources  (11)
  • Institut für Meereskunde  (9)
  • Springer  (2)
  • 1980-1984  (11)
  • 1
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    Geophysical prospecting on the Santorini Islands (1984)
    Springer
    In:  Bulletin of Volcanology, 47 (3). pp. 447-466.
    Details
    Publication Date: 2017-05-05
    Description: A program of geophysical research was carried out as a preliminary stage of study of the Santorini volcanic group. This area is of remarkable geothermal and volcanological interest, and the definition of a volcanological structural model is the starting point for an understanding of the local geodynamic processes. Gravity, magnetic and geoelectrical data proved that: (i) the core of the volcanic edifice consists of a sedimentary-metamorphic basement; (ii) the basement is tectonically disturbed and a linear tectonic system produces a graben-type structure in the middle part of the area.
    Type: Article , PeerReviewed
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  • 2
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    POSEIDON Reise 72 [POS72] Fahrtbericht (1981)
    Institut für Meereskunde
    In:  Institut für Meereskunde , Kiel, 20 pp.
    Details
    Publication Date: 2015-07-20
    Description: Die 72. Reise der FS Poseidon fand zwischen dem 9. und 13. März 1981 im Skagerrak statt.
    Type: Report , NonPeerReviewed
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  • 3
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    Die Erwärmung des Ozeans hervorgerufen durch solare Strahlungsenergie (1983)
    Institut für Meereskunde
    In:  Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel, 120 . Institut für Meereskunde, Kiel, Germany, 190 pp.
    Details
    Publication Date: 2013-02-19
    Type: Report , NonPeerReviewed
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  • 4
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    Isopycnic atlas of the North Atlantic Ocean : monthly mean maps and sections (1984)
    Institut für Meereskunde
    In:  Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel, 132 . Institut für Meereskunde, Kiel, Germany, 173 pp.
    Details
    Publication Date: 2013-06-27
    Type: Report , NonPeerReviewed
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  • 5
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    On the architecture and function of cuttlefish bone (1983)
    Springer
    In:  Journal of Materials Science, 18 (7). pp. 2081-2086.
    Details
    Publication Date: 2021-08-02
    Description: The internal shell of the cuttlefish, which acts as a rigid buoyancy tank, is structured to combine high compressive strength — since it must withstand the external hydrostatic pressure — with minimum weighT. The micro-architecture of cuttlebone has been examined by electron microscopy and the relevance of the structure to the mechanical duties required of the shellin vivo are briefly discussed. The inorganic calcareous structure is associated with an organic component which may act as a template for mineralization.
    Type: Article , PeerReviewed
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  • 6
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    Release of dissolved free amino acids during a bloom of Thalassiosira rotula (1981)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-24
    Description: Three large plastic enclosures (3-4 m3) were anchored in the outer harbour of Helgoland (German Bight) and filled with natural seawater which was filtered free of algae. The enclosed water bodies were enriched with inorganic nutrients and inoculated with the diatom Thalassiosira rotula. During the growth of the algae diurnal changes in concentration of dissolved free amino acids (DFAA) occurred. The periodic concentration changes of individual amino acids with a low carbon to nitrogen ratio showed significant interrelationships with the partly synchronous devisions of the diatoms. From the exponential to the stationary phase the carbon to nitrogen ratio of DFAA shifted to higher values pointing at an adaptation of the organisms to the decreasing inorganic nitrogen source. During the bloom amino acids relatively rich in nitrogen were mainly excreted but by the end of the growth amino acids with a higher carbon content predominated. At phases of high photosynthetic activity the organisms probably reduced the high osmotic pressure by exudation of DFAA.
    Type: Article , NonPeerReviewed
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  • 7
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    Effect of some ecological factors on the growth of the copepod Schizopera elatensis : a potential food organism for hatcheries (1981)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-24
    Description: Copepods are an important link in the marine food web, and, in particular, serve as food for fish larvae. Schizopera elatensis, a marine harpacticoid copepod, was reared in the laboratory, and the effect of various environmental factors, i.e., diet, temperature, salinity and height of water column on its growth was determined. Schizopera elatensis multiplies at a wide range of salinities, 10‰ to 70‰, and temperatures, from at least 18° C to an upper limit of 36° C, with an optimum of 25° C, and grows in high densities (300-400 individuals per ml): the lower the water column, the higher the density. The prospective use of S. elatensis as a live food organism in mariculture is discussed.
    Type: Article , NonPeerReviewed
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  • 8
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    Experimental studies of trophic relationships between marine bacteria and bivalve molluscs (1981)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-25
    Description: The importance of bacteria in the feeding of marine bivalves has been demonstrated by several authors. Some examples of good growth of molluscs were noted on a bacterial diet only. But, while the intense filtration of bacteria by molluscs has been observed, the exact role of bacteria in the nutrition of bivalves was not completely known. The filtered particles were sometimes eliminated as pseudofaeces, without any intestinal transit. On the other hand, live cells could also pass through the gut without being degested. To study in detail the fate of bacterial cells distributed as food to young bivalves, we used a new method which combines histology and scanning electron microscopy. This made it possible to observe, on serial histological sections of whole animals, the gut content and the condition of the ingested cells at the different levels of the intestinal tract. The ingestion and digestion by young mussels (Mytilus edulis) of some marine bacterial strains belonging to different taxonomic groups were studied by this method. Thus, partially digested bacterial cells were observed in the stomach, when the hind gut contained undamaged cells, three hours after food distribution. The results obtained for all the strains we tested are presented and discussed in this paper.
    Type: Article , NonPeerReviewed
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  • 9
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    The effect of green algal mats on intertidal macrobenthic communities and their predators (1981)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-25
    Description: Eutrophication by sewage effluent has led to the development of extensive mats of green algae over much of the former open mudlands of Langstone Harbour on the south coast of Britain. The presence of the mal reduces the biomass and diversity of the mud-dwelling infauna but a great increase in the number and biomass of epibenthic animals (primarily Hydrobia ulvae Pennant) produces a total biomass almost twice that of open mudlands. Although the common invertebrates are favoured prey for many estuarine birds these algal areas are avoided by the dense aggregation of waders and wildfowl.
    Type: Article , NonPeerReviewed
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  • 10
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    Predation of Pomatoschistus microps Krøyer and P. minutus Pallas (Gobiidae, Pisces) on macro- and meiofauna in the brackish fjord Schlei (1981)
    Institut für Meereskunde
    Details
    Publication Date: 2022-05-27
    Description: From April to September 1978 benthos and plankton samples were taken at three different sites in the Schlei fjord (German Baltic coast) with different salinity (ca. 15, 10 and below 5‰). Abundances of benthos and plankton taxa were compared with abundances of the taxa occurring in the guts of Pomatoschistus microps and P. minutus, caught at the same places at the same time. Main food were calanoids, oligochaetes and harpacticoids. Calculations showed that young gobies most probably regulate the population of harpacticoids to a large extent by grazing.
    Type: Article , NonPeerReviewed
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