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  • Other Sources  (6)
  • Cambridge University Press  (3)
  • Pergamon Press
  • Plenum Press
  • 1980-1984  (6)
  • 1983  (6)
  • 1
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    Seismic Wave Propagation in Stratified Media (1983)
    Cambridge University Press
    In:  Cambridge, 342 pp., Cambridge University Press, vol. 13, no. XVI:, pp. 227-235, (ISBN 3-540-43528-X)
    Details
    Publication Date: 1983
    Keywords: Textbook of geophysics ; Seismology ; Seismics (controlled source seismology) ; Waves
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Exploration Seismology Vol. 2, Data-Processing and Interpretation (1983)
    Cambridge University Press
    In:  Boston, 227 pp., Cambridge University Press, vol. Developments in Petroleum Science vol. 15B, no. Publ. No. 12, pp. 9, (ISBN 0-521-66023-8 hc (0-521-66953-7 pb))
    Details
    Publication Date: 1983
    Keywords: Textbook of geophysics ; Seismics (controlled source seismology)
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Spatial and temporal patterns of organic matter accumulation on the Peru continental margin (1983)
    Plenum Press
    In:  In: Coastal upwelling, its sediment record. Part B: sedimentary records of ancient coastal upwelling. , ed. by Thiede, J. and Suess, E. NATO Conference Series IV: Marine Sciences, 10b . Plenum Press, New York, pp. 311-345.
    Details
    Publication Date: 2017-04-06
    Type: Book chapter , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 4
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    The female reproductive cycle of the octopus, Eledone cirrhosa (1983)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 63 . pp. 71-83.
    Details
    Publication Date: 2020-07-16
    Description: Changes in the relative size of the ovary, oviducal glands and eggs are described for Eledone cirrhosa captured from the North Sea off Aberdeen over a 3 year period (N = 488). The analysis is based only on freshly caught animals, excluding those held in aquarium conditions (〉 5 days). Ovary enlargement and egg size estimates are used as indices of sexual maturity. Between 0–15% and 18–95% of total body weight is contributed by the ovary. Maximum egg length in the ovary ranges up to 7 mm. On these criteria, sexual maturation typically occurs at body sizes between 400–1000 g although some animals of 1000–1200 g are found showing no evidence of ovary enlargement. The majority of the monthly sample is always immature but maturation can apparently occur at almost any time of the year. Increase in mean ovary index and mean values for egg size are strongly seasonal and indicate a peak incidence of sexual maturity over 2–3 months in the July-September period. Spawning is presumed to follow within 1 month. Estimates of the fecundity of the females, based on the egg sample from the ovary, range from 2·2 × 103 to 55 × 10 3 eggs with a mean of 11 × 10 3 and a mode of 7·5 × 10 3 eggs.
    Type: Article , PeerReviewed
    Format: text
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  • 5
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    Localization of Two Brominated Metabolites, Aerothionin and Homoaerothionin, in Spherulous Cells of the Marine Sponge Aplysina fistularis(=Verongia thiona) (1983)
    Pergamon Press
    In:  Acta Zoologica, 64 (4). pp. 199-210.
    Details
    Publication Date: 2020-04-23
    Description: Energy dispersive X-ray microanalysis was used to localize the two brominated natural products (aerothinonin and homoaerothionin) in the tissues of a marine demosponge, Aplysina fistularis. Virtually all of these compounds were localized within the spherules of the spherulous cells in the mesohyl. This is the first localization of any secondary metabolite at the cellular or sub-cellular level in any marine invertebrate. In Aplysina fistularis, as in other species of the same genus studied by Vacelet, the spherulous cells are concentrated just beneath the exopinacoderm and just beneath the endopinacoderm of the excurrent canals. Moreover, there is electron microscopic evidence for degeneration of some spherulous cells throughout the mesohyl. Presumably, this degeneration can release some aerothionin and homoaerothionin, which are known to have antibiotic properties. After release from the spherulous cells, these brominated natural products could function (1) within the mesohyl to exclude some types of bacteria or to aggregate ingested bacteria and/or (2) within the boundary layer of the surrounding seawater for defense or offense, as considered in the discussion section.
    Type: Article , PeerReviewed
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  • 6
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    Development of Cenozoic Abyssal Circulation South of the Greenland-Scotland Ridge (1983)
    Plenum Press
    In:  In: Structure and Development of the Greenland-Scotland Ridge: New Methods and Concepts. , ed. by Bott, M. H. B. Plenum Press, New York, pp. 549-589.
    Details
    Publication Date: 2016-07-25
    Type: Book chapter , NonPeerReviewed
    Format: text
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