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  • Other Sources  (3)
  • Cambridge University Press  (2)
  • American Geophysical Union (AGU)
  • American Meteorological Society (AMS)
  • Annual Reviews
  • Wiley-Blackwell
  • 2005-2009
  • 1980-1984  (3)
  • 1980  (3)
  • 1
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    A significant upper limit for the rate of formation, of OCS from the reaction of OH with CS2 (1980)
    American Geophysical Union (AGU)
    In:  Geophysical Research Letters, 7 (10). pp. 797-800.
    Details
    Publication Date: 2020-07-30
    Description: The rate of reaction of OH with CS2 to form OCS by reaction (1) has been measured through observation of O14CS following 254 nm equation image photolysis of mixtures of H2O2 with 14CS2. The OH concentrations have been monitored through simultaneous measurement in the same cell of either (a) the oxidation of CO to CO2, or (b) the removal of a hydrocarbon such as C3H8 or iso-C4H10. The upper limit for the formation of OCS based on (a) corresponds to a rate constant k1 〈 0.3 × 10−14 cm³ molecule−1 sec−1. Other chemical reactions in the system have led to the formation of both 14CO and 14CO2, indicating the existence of a complex combination of reactions such that the observed O14CS need not have been formed by (1). The rate of reaction (1) is sufficiently slow that it is neither an important atmospheric sink for CS2 nor an important source for atmospheric OCS. The reaction of OH with OCS has not been measured in these experiments, but by analogy with k1 it is probably not an important atmospheric sink for OCS nor an important source of SO2.
    Type: Article , PeerReviewed
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  • 2
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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
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  • 3
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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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