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  • Other Sources  (2)
  • American Chemical Society
  • International Union of Crystallography (IUCr)
  • Wiley-Blackwell
  • 1990-1994  (2)
  • 1980-1984
  • 1955-1959
  • 1
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    Seasonal variation in the diet of common seals (Phoca vitulina) in the Moray Firth area of Scotland (1991)
    Wiley-Blackwell
    In:  Journal of Zoology, 223 (4). pp. 641-652.
    Details
    Publication Date: 2020-07-17
    Description: Seasonal variation in the diet of common seals (Phoca vitulina) in the Moray Firth, north-east Scotland, was determined from analysis of faecal samples collected at haul-out sites during each month of 1988. Data on diet of common seals in 1987 are also presented. Limitations of the methods available for quantification of diet are discussed. Although some of the observed variation in diet from month to month may reflect changes in the sampling regime, a clear seasonal pattern was apparent, with clupeids predominating in the winter and sandeels in the summer. The trends observed are consistent with opportunistic feeding on the most abundant Prey.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Terminal spawning in the deepwater squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) (1994)
    Wiley-Blackwell
    In:  Journal of Zoology , 234 . pp. 189-201.
    Details
    Publication Date: 2020-11-09
    Description: Maturation in the onychoteuthid squid Moroteuthis ingens was found to be irreversible, with death following shortly after sexual maturation and spawning. Both males and females were found with spent gonads. The ovary reaches very large sizes in mature females and probably prevends feeding by constricting the caecum. There was also a marked difference in the tissue with an inelastic, gelantinous appearence. Histological examination of the mantle wall revealed that the tissue breakdown was due to a drastic histolysis of muscle tissue and, to a lesser extent, collagen fibres. Mature males also showed some tissue breakdown and loss of muscle fibres but this was not as dramatic as in the females. These features are considered in relation to processes contributing to terminal maturation in M. ingens.
    Type: Article , PeerReviewed
    Format: text
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