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  • Other Sources  (11)
  • Cambridge University Press  (10)
  • Oxford University Press
  • 1995-1999  (9)
  • 1980-1984  (2)
  • 1999  (9)
  • 1980  (2)
  • 1
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    Principles of Seismology (1999)
    Cambridge University Press
    In:  New York, 475 pp., Cambridge University Press, vol. 26, no. ALEX(01)-FR-77-01, AFTAC Contract F08606-76-C-0025, pp. 329, (ISBN 0-521-62434-7 hc (0-521-62478-9 pb))
    Details
    Publication Date: 1999
    Keywords: Textbook of geophysics ; Seismology ; traditional ; Udias
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Introduction to Seismology (1999)
    Cambridge University Press
    In:  New York, 260 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))
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    Publication Date: 1999
    Keywords: Textbook of geophysics ; Seismology ; modern
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Cephalopod Beaks from the Stomachs of Two Northern Bottlenosed Whales (Hyperoodon Ampullatus) (1980)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 60 (01). p. 151.
    Details
    Publication Date: 2020-07-16
    Description: This is the first detailed analysis of cephalopod beaks from the stomach of a northern bottlenosed whale, Hyperoodon ampullatus (Forster, 1770). The digestive action of many predators barely affects the chitinous beaks of cephalopods and some cetaceans accumulate the beaks in considerable numbers in their stomachs. The present beaks are clean and unbroken. Identification of cephalopod beaks from stomachs of predators such as sperm whales (see Clarke, 1977), seals (Clarke & Trillmich, 1980) and albatrosses (Clarke, Croxall & Prince, 1980) throws considerable light on the biology and relative ecological importance of the species of cephalopods concerned as well as providing useful information on the diet of the predators.
    Type: Article , PeerReviewed
    Format: text
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  • 4
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    Statoliths of one fossil and four living squids (Gonatidae: Cephalopoda) (1980)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 60 (02). p. 329.
    Details
    Publication Date: 2020-07-16
    Description: Cephalopod statoliths are paired calcareous stones which lie in cavities, the statocysts, within the skull. They have a form which, though variable, shows promise as a source of criteria for taxonomic and evolutionary studies. As a preliminary to more detailed studies, Clarke (1978) published a description of the form of a generalized teuthoid statolith, coined nomenclature for the various parts and gave a very brief survey of variation of statoliths within the living Cephalopoda. This nomenclature was used in a detailed description of fossilized teuthoid statoliths by Clarke & Fitch (1979). Here, descriptions of the statoliths of the living species Berryteuthis magister (Berry, 1913), Gonatopsis borealis Sasaki, 1923, Gonatopsis (Boreoteuthis) makko Okutani & Nemoto, 1964 and Gonatus fabricii (Lichtenstein, 1818) are given and the fossil Berryteuthis species described in outline by Clarke & Fitch (1979) is compared with B. magister. A statistical analysis of measurements of the statoliths of these five species has been made and the results are presented. This forms the first part of a general description of teuthoid statoliths and similar studies on the Ommastrephidae and the Loliginidae are in preparation.
    Type: Article , PeerReviewed
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  • 5
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    Late Cretaceous climate, vegetation and ocean interactions (1999)
    Cambridge University Press
    In:  In: Warm climates in earth history. , ed. by Wing, S. L. Cambridge University Press, Cambridge, pp. 275-296. ISBN 9780521641425
    Details
    Publication Date: 2018-02-06
    Type: Book chapter , NonPeerReviewed
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  • 6
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    Diet of the European flying squid Todarodes sagittatus (Cephalopoda: ommastrephidae) in the Balearic Sea (western Mediterranean) (1999)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 79 (3). pp. 479-486.
    Details
    Publication Date: 2021-06-17
    Description: Stomach contents of Todarodes sagittatus caught by trawlers working from 100 to 800 m depth in the Balearic Sea (western Mediterranean) were studied. From the 348 stomachs examined (153 males and 195 females) 33.62% were empty (39.21% in males and 29.74% in females). The diet of the squid was composed of 58 different prey items belonging to four major groups: Osteichthya, Crustacea, Cephalopoda and Chondrichthya. Osteichthyes, crustaceans and cephalopods were the most common prey, with a frequency of occurrence value of 84.85, 48.92 and 29.87% respectively. A change in the diet as the squid grows was observed, since juveniles feed basically on fishes while adults prey more actively on crustaceans. Analysis of the diet by size-classes reflected an ontogenetic migration to deeper waters since, parallel to the increase of size, a raise in the percentage of prey species inhabiting deeper waters was detected. Cannibalism was quite frequent, since T. sagittatus was the second most common cephalopod prey. Females had higher fullness-weight index and lower emptiness index than males, which reflects their major energetic demand for egg production.
    Type: Article , PeerReviewed
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  • 7
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    Population structure and growth of the squid Todarodes sagittatus (Cephalopoda: Ommastrephidae) in north-west African waters (1999)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 79 (3). pp. 467-477.
    Details
    Publication Date: 2021-06-11
    Description: The population structure of the European flying squid Todarodes sagittatus was studied using data of about 5000 squid caught in waters off the western Sahara between 1969 and 1997. The bulk of the population consisted of winter-spawned squid, which occurred as juveniles of 80–120 mm mantle length (ML) over the slope in spring, and as immature squid of 160–180 mm ML both on the shelf and slope in summer. In autumn, the squid attained 220–280 mm ML, matured, and shifted to the slope, where the spawning was supposed to occur in winter. Age and growth of T. sagittatus was studied using statolith ageing techniques. Assuming daily production of putative growth increments within statoliths, as well as sizes and proportions of immature and maturing females, the lifespan of the west Saharan populations of T. sagittatus lasts ∼1 y. Todarodes sagittatus is a fast growing squid at juvenile and immature ontogenetic phases. Early maturation (at ages 220–230 d in males and 250–260 d in females, respectively) and subsequent decrease of somatic growth rates caused rather small modal sizes of mature squid (250–300 mm ML) compared with those of their northern counterparts (350–420 mm ML). Both hatching dates and seasonality in occurrence of mature females shows that in waters off the western Sahara T. sagittatus spawns throughout the year with a well-pronounced winter peak.
    Type: Article , NonPeerReviewed
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  • 8
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    Egg size and fecundity in females of the subfamilies Todaropsinae and Todarodinae (Cephalopoda: Ommastrephidae) (1999)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 79 (3). pp. 569-570.
    Details
    Publication Date: 2021-06-11
    Description: Size of ripe eggs and potential fecundity are described in the squid of the subfamilies Todaropsinae and Todarodinae (Oegopsida: Ommastrephidae)— Todaropsis eblanae from West Africa, Todarodes angolensis from Namibia, Todarodes sagittatus from north-west Africa and the Mediterranean Sea, Todarodes sp. from the south-east Pacific, Nototodarus hawaiiensis from the south-east Pacific and West Indian Ocean and Martialia hyadesi from the south-west Atlantic. Females of both subfamilies are characterized by a wide range of ripe egg size (0.7–2.4 mm) and low and medium values of potential fecundity (20,000–2,500,000).
    Type: Article , PeerReviewed
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  • 9
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    Rayleigh Fractionation (1999)
    Oxford University Press
    Details
    Publication Date: 2022-02-23
    Description: Rayleigh fractionation is an important, open system process that involves the progressive removal of a fractional increment of a trace substance from a larger reservoir. A consistent relationship, such as a distribution coefficient, equilibrium constant, or a fractionation factor, is maintained between the reservoir and each increment at the instant of its formation, but, once formed, each increment is thereafter removed or otherwise isolated from the system. The mathematical constraints of this process include the distribution coefficient along with a statement of material balance in the shrinking system. These constraints may be combined into a single differential equation that may be integrated to a well-known relationship discovered by Rayleigh (1902). Examples of this common process include condensation, distillation, and the formation of crystals from a melt or a solution. As shown in the following, Rayleigh fractionation explains many different characteristics of meteoric waters, and provides a first-order explanation of the MWL
    Type: Book chapter , NonPeerReviewed
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  • 10
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    Ecosystem composition and structure (1999)
    Cambridge University Press
    In:  The terrestrial biosphere and global change: Implications for natural and managed ecosystems
    Details
    Publication Date: 2022-03-21
    Type: info:eu-repo/semantics/bookPart
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    CITATION PIK
  • 11
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    Use of models in global change studies (1999)
    Cambridge University Press
    In:  The terrestrial biosphere and global change: Implications for natural and managed ecosystems
    Details
    Publication Date: 2022-03-21
    Type: info:eu-repo/semantics/bookPart
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