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  • 1
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    Some Problems of Geodynamics (1911)
    Cambridge Univ. Press
    In:  Cambridge, Cambridge Univ. Press, vol. 5, no. 22, pp. 662-664, (ISBN 0-470-87000-1 (HB), ISBN 0-470-87001-X (PB))
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    Publication Date: 1911
    Keywords: Elasticity ; Textbook of geophysics
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Seismology and Plate Tectonics (1990)
    Cambridge Univ. Press
    In:  Cambridge, Cambridge Univ. Press, vol. 15, no. Subvol. b, pp. 220, (ISBN: 1589480406)
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    Publication Date: 1990
    Keywords: Textbook of geophysics ; Seismology ; Plate tectonics
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    The Mechanics of Earthquakes and Faulting (1990)
    Cambridge Univ. Press
    In:  Cambridge, 439 pp., Cambridge Univ. Press, vol. 18, no. Publ. No. 12, pp. 267, (ISBN 3-534-14102-4)
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    Publication Date: 1990
    Keywords: Textbook of geophysics ; Seismology ; Tectonics ; Fault zone ; cracks and fractures (.NE. fracturing) ; Rock mechanics ; Laboratory measurements
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Sponge associations in the eastern Weddell Sea (1992)
    Cambridge Univ. Press
    In:  Antarctic Science, 4 (02). pp. 137-150.
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    Publication Date: 2019-09-23
    Description: About 1500 photographs from three different areas along the eastern Weddell Sea shelf and slope were analysed with respect to their sponge fauna. On the basis of material collected in concurrent bottom trawls, 34 sponge taxa were identified. Cluster and multidimensional scaling analysis showed the sponges to belong to different associations. Spatial extension of the associations is judged to be between several hundred meters and about 2 km. A deeper association (390–1125 m) on predominantly muddy substrates along a transect at Halley Bay is characterized by four opportunistic demosponge species; a second association on harder substrate in shallower depths (99–225m) off Kapp Norvegia is more diverse, with hexactinellids as one dominant component. A third cluster, comprising both Halley Bay and Kapp Norvegia stations (458–626 m), is dominated by four species which constitute a subcluster within the Kapp Norvegia sponge association. Densities vary strongly within clusters and in between geographically close stations. The species associations are related to different substrates, not to depth. Within single stations most species are patchily distributed. Both association structure and species distribution within single stations can be explained on the basis of the biology of the single sponge species.
    Type: Article , PeerReviewed
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  • 5
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    Adjustment of anisakid nematode life cycles to the high Antarctic food web as shown by Contracaecum radiatum and C. osculatum in the Weddell Sea (1992)
    Cambridge Univ. Press
    In:  Antarctic Science, 4 (02).
    Details
    Publication Date: 2017-03-16
    Description: The infestation of Weddell seals and several fish species by the anisakid nematodes Contracaecum osculatum and C. radiatum was compared. Nematode numbers in Weddell seal stomachs ranged from 30 560 to 122 640. Third stage larvae from seals and fish were separated into a short and a long type. The short type was related to C. radiatum and the long type to C. osculatum. The short type was more abundant in pelagic fish species, whereas the long type prevailed in benthic fish species. Fish-feeding channichthyids Cryodraco antarcticus and Chionodraco myersi seemed to play an important role as paratenic hosts for the third stage larvae of both Contracaecum species. Different advantageous and detrimental features of a benthic versus a pelagic life cycle under high Antarctic ecological conditions are discussed. Varying abundance of the two nematode species in hosts may be controlled by differences in their life cycles, which follow either a pelagic or a benthic food web. Crucial importance is thus given to the local availability of pelagic versus benthic food resources for Weddell seals.
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  • 6
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    Foraging ecology of southern elephant seals in relation to the bathymetry and productivity of the Southern Ocean (1992)
    Cambridge Univ. Press
    In:  Antarctic Science, 4 (04). pp. 393-398.
    Details
    Publication Date: 2020-06-11
    Description: Southern elephant seals (Mirounga leonina) are among the most proficient of mammalian divers and are a major component of the Antarctic food web. Yet little is known of their movements or interaction with their oceanic environment. Specially designed satellite-link data loggers allowed us to visualize the 3-D movements of elephant seals as they swam rapidly from South Georgia to distant (up to 2650 km) areas of Antarctic continental shelf. One seal dived continuously to the sea bed in one small area for a month, implying consumption of benthic prey. Dives here were shorter even though average swimming velocity was lower. It is suggested that the physiological requirements of feeding and digestion reduced the aerobic dive limit. Long distance travel to relocatable hydrographic or topographical features, such as shelf breaks, may allow large predators to locate prey more consistently than from mid-ocean searches.
    Type: Article , PeerReviewed
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  • 7
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    Young squid in the plankton of Prydz Bay, Antarctica (1994)
    Cambridge Univ. Press
    In:  Antarctic Science, 6 (02). pp. 171-173.
    Details
    Publication Date: 2020-06-11
    Description: A collection of juvenile squid were caught with the Isaacs-Kidd midwater trawl (IKMT) and the Juday plankton net at 86 stations in Prydz Bay (60°–67°30′S, 60°–80°E) to a depth of 500 m but mostly at 0–200 m. Five species were identified, Psychroteuthis glacialis, Alluroteuthis antarcticus, Brachioteuthis sp. and the cranchiids Galiteuthis glacialis and Mesonychoteuthis hamiltoni. P. glacialis and the cranchiids were the most abundant species. Young P. glacialis (5–17 mm ML) were taken at depths of 5–200 m but concentrated in the upper 100 m whilst the cranchiids (5–35 mm ML) occurred over a wider vertical range (50–500 m). The regular occurrence of paralarvae and juveniles suggests that all the species reproduce in the Antarctic. Juvenile Vertical distribution appears to differ between species with P. glacialis concentrated relatively near the surface, the cranchiids in the upper part of the Circumpolar Deep Water and A. antarcticus widely distributed to a depth of 900 m.
    Type: Article , PeerReviewed
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  • 8
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    Steep-sided carbonate mud mounds in the Middle Devonian of the eastern Anti-Atlas, Morocco (1993)
    Cambridge Univ. Press
    In:  Geological Magazine, 130 (1). pp. 69-83.
    Details
    Publication Date: 2017-10-11
    Description: During the Eifelian and early Givetian, isolated mud mounds were established in a shallow basin, predominantly characterized by calcareous mudstone deposition, in the eastern Anti-Atlas of Morocco. The shapes, lithologies and faunas of these mounds stand in marked contrast with those of nearby contemporaneous, more widespread stromatoporoid/coral biostromes and small carbonate platforms adjacent to shallow shelves. With one exception, the mounds are totally exhumed, perfectly exposing their original morphologies. The smaller mounds are asymmetrical, with steeper northeastern and eastern (35–75°) than southwestern and western flanks (30–50°). The largest mound is almost circular and symmetrical, with scattered stromatoporoids, tabulate and rugose corals that do not form a rigid framework. Frame-builders are much rarer or absent in the smaller mounds. The nature and geographical distribution of the mounds reflects a bathymetric gradient, indicating that they formed on low-angle ramps which sloped gently into a shallow basin. A large reef mound was constructed at moderate depth, while small mud mounds accumulated in deeper water. Decrease of frame-builders and increase in pelagic organisms in the latter document the transition to a pelagic platform with reduced sedimentation at a short distance from the deepest mound.
    Type: Article , PeerReviewed
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  • 9
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    Distribution and lipid composition of early life stages of the cranchiid squid Galiteuthis glacialis (Chun) in the Weddell Sea, Antarctica (1994)
    Cambridge Univ. Press
    In:  Antarctic Science, 6 (02). pp. 235-239.
    Details
    Publication Date: 2019-01-21
    Description: The relatively small numbers of pelagic cephalopods caught in the RMT-8 samples (0–300 m) in February/March 1983 in the Weddell Sea were dominated by early life stages of the cranchiid squid Galiteuthis glacialis. A total of 48 specimens were caught with dorsal mantle length (ML) ranging from 4–36 mm. They occurred with a mean density of 0.15 ind. × 1000 m−3 and were present in 38% of 33 RMT-8 samples. G. glacialis was the only cranchiid squid found in the Weddell Sea between 66° and 74°S. Its early life stages were concentrated in the layers below the summer thermocline (〉50 m) and body sizes appeared to increase towards deeper water layers. For biochemical analyses, nine specimens of G. glacialis (ML 6–18 mm) were sampled in the eastern Weddell Sea between 185–520 m water depth in January/February 1985. Total lipid contents ranged from 8%–11% dry weight (DW) with phospholipids being the main lipid component (43–56% of total lipid). Storage lipids (triacylglycerols) made up 18–26% of total lipid. The relatively low lipid contents may reflect the early development stage of the specimens examined. The data presented give the first information on geographical and vertical distribution patterns of early life stages of G. glacialis in the high-Antarctic Weddell Sea, as well as on their lipid content and composition.
    Type: Article , PeerReviewed
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  • 10
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    Eledonine octopods from the Southern Ocean: systematics and distribution (1994)
    Cambridge Univ. Press
    In:  Antarctic Science, 6 (02). pp. 205-214.
    Details
    Publication Date: 2020-06-11
    Description: Fortyfour octopods from bottom trawls off Palmer Archipelago, south-eastern Argentina, south-eastern New Zealand, Crozet Islands and Showa Station were examined. Three species of Pareledone, three species of Graneledone and one species of Megaleledone were identified. All were characterized by having a single row of arm suckers. Mature males of P. harrissoni, P. adelieana and G. macrotyla were recorded for the first time. Hectocotylus and male reproductive organs of these species are described. On the basis of previously reported distributions and the present localities, P. charcoti, P. harrissoni and P. adelieana appear to have circumantarctic distributions. G. macrotyla was identified but the other two species of Graneledone could not be identified to species level because of the poor systematic state of this genus.
    Type: Article , PeerReviewed
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