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  • 1
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    Springer-Verlag
    In:  Bull., Polar Proj. OP-O3A4, Explosion Seismology in Central Europe, Berlin Heidelberg New York, Springer-Verlag, vol. 13, no. 4, pp. 120-133, (ISBN 0080419208)
    Publication Date: 1976
    Keywords: Gravimetry, Gravitation ; Deep seismic sounding (espec. cont. crust) ; EUROPROBE (Geol. and Geophys. in eastern Europe)
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  • 2
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    Springer-Verlag
    In:  Bull., Polar Proj. OP-O3A4, Explosion Seismology in Central Europe, Berlin Heidelberg New York, Springer-Verlag, vol. 13, no. 4, pp. 120-133, (ISBN 0080419208)
    Publication Date: 1976
    Keywords: EUROPROBE (Geol. and Geophys. in eastern Europe) ; Deep seismic sounding (espec. cont. crust) ; Reflection seismics ; Review article
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  • 3
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    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))
    Publication Date: 1982
    Keywords: Textbook of geophysics ; Seismics (controlled source seismology)
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  • 4
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    Springer-Verlag
    In:  Professional Paper, Open-File Rept., Explosion Seismology in Central Europe, Berlin, Heidelberg, New York, Springer-Verlag, vol. Memoir 157, no. 1, pp. 215-218, (ISBN 0080419208)
    Publication Date: 1976
    Keywords: Refraction seismics ; Seismics (controlled source seismology)
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  • 5
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    Springer-Verlag
    In:  Wien, Springer-Verlag, vol. 70, no. Publ. No. 12, pp. 1039-1054, (ISBN 0-415-30725-2, 0-415-30724-4 (400 pp.))
    Publication Date: 1982
    Keywords: Textbook of geophysics ; Rock mechanics ; Fracture ; Elasticity ; Strength ; Stress
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  • 6
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    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 62 (2). pp. 277-296.
    Publication Date: 2020-07-16
    Description: The growth of the octopus Eledone cirrhosa has been studied in a population from the North Sea off Aberdeen. Data are presented for the growth of individuals isolated in aquarium conditions; the growth of size classes in thefieldpopulation; and preliminary information on the growth relationships of gonad, somatic, cardiac and brain components of the body. At 15 °C Eledone cirrhosa is capable of growing from 10 to 1000 g in 270 days. From octopuses which feed readily in captivity, weight specific growth rates of up to about 3–5 % day-1 for animals of 100 g body weight are recorded, falling to a maximum of about 1–5 % day-1 at body sizes above 500 g. Females stop growing when sexually mature, but in the sample captured they were consistently larger than males, a feature which may account for the 7:1 bias towards the incidence of females. On a wet-weight basis, the mean food incorporation into growth is 37 % of the food ingested, which is 49% of the gross weight of crabs killed. Field data for 1978/79 suggest that animals recruited to the population at the beginning of the year grew steadily until December, overwintered without growing, then grew rapidly for several months in the subsequent year before disappearing from the samples. The estimated average age of those animals and by implication, the life span, is 20 months.
    Type: Article , PeerReviewed
    Format: text
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  • 7
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    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 56 (03). pp. 707-722.
    Publication Date: 2020-07-16
    Description: The ommastrephid squids are large active animals occurring in most of the world's oceans. Luminous organs or bioluminescence have been observed only in members of the subfamily Sthenoteuthinae, containing the genera Ornithoteuthis, Symplectoteuthis (= Eucleoteuthis), Hyaloteuthis, Ommastrephes and Dosidicus. The light organs of Ommastrephes pteropus are small sub-spherical bodies randomly distributed over the ventral surface of the mantle, head, arms and tentacles (Roper, 1963) and are aggregated dorsally to form a large luminous patch (Clarke, 1965). Relatively little is known about the organs, capabilities and biochemistry of luminescence in cephalopods (Harvey, 1952; Herring, in Press), and the size of the light organ and availability of O. pteropus provide an unusual opportunity for such studies. Although among the molluscs the luminescent systems of the gastropod Latia and the bivalve Pholas have been partially characterized (Shimomura & Johnson, 1968; Henry, Isambert & Michelson, 1970, 1973) the only cephalopod system which has been investigated to date is that of the enoploteuthid Watasenia scintillans (Goto et al., 1974; Inoue et al., 1975). This investigation examines the anatomy and biochemistry of the dorsal light organ of O. pteropus, which differs markedly in these respects from the brachial organs of Watasenia.
    Type: Article , PeerReviewed
    Format: text
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  • 8
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    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 62 (04). p. 799.
    Publication Date: 2020-07-16
    Description: Five hundred and twenty-eight specimens of Loligo forbesi Steenstrup, from landings in Horta, Faial, Azores, during the year 1 March 1980 to 28 February 1981, were tudied; 59·3 % were males, 40·7 % females. Of the males 80·2 % were sexually mature, of the females 91·6 %, both sexes showing the highest degree of maturity in spring and he lowest in autumn. The mean dorsal mantle length of the mature males was 56·5 cm, or females 33·5 cm. A weight-length relationship was calculated. he stomachs of 622 specimens were sampled, of which 306 contained food. The prey omponents were studied qualitatively. The main prey was fish (82·0%), of which 0·5 % were horse mackerel, Trachurus picturatus, this being the most important food rganism. Preliminary results of statolith readings are given.
    Type: Article , PeerReviewed
    Format: text
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  • 9
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    Springer-Verlag
    In:  In: Marine Mesocosms: Biological and Chemical Research in Experimental Ecosystems. , ed. by Grice, G. D. and Reeve, M. R. Springer-Verlag, New York, Heidelberg, Berlin, pp. 205-216.
    Publication Date: 2016-07-20
    Description: Neritic ecosystems in the boreal zone generally maintain more plankton biomass over a longer period of the year than off-shore systems in the same latitude. Productivity is higher particularly during the summer stratification, between the spring and autumn phytoplankton blooms brought about by nutrients from sources other than pelagic remineralization. Plankton biomass levels maintained by recycling within a pelagic system tend to decrease with time if limiting nutrients bound in sedimenting particles are not replenished. In neritic environments, surface waters can receive nutrients from the land, but depending on water depth and local weather and geomorphology, replenishment can also come from nutrient-rich subthermocline water and sediments. In deeper bodies of water with a steep coastline, such as fjords, the sediment contribution will be less important (Takahashi et al. 1977) than in shallow water systems with more of their sediment surface within the euphotic zone (von Bodungen et al. 1975, Rowe et al. 1975).
    Type: Book chapter , NonPeerReviewed
    Format: text
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