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  • Other Sources  (7)
  • Cambridge University Press  (7)
  • American Institute of Physics (AIP)
  • 1985-1989  (7)
  • 1980-1984
  • 1940-1944
  • 1986  (7)
  • 1
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    Numerical Recipes - The Art of Scientific Computing (1986)
    Cambridge University Press
    In:  Cambridge, Cambridge University Press, vol. 7, no. Publ. No. 12, pp. 127, (ISBN 1-58488-323-5)
    Details
    Publication Date: 1986
    Keywords: Inversion ; Handbook of mathematics
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    A Descriptive Ecology of Eledone Cirrhosa (Mollusca: Cephalopoda) in Scottish Waters (1986)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 66 . pp. 855-865.
    Details
    Publication Date: 2020-07-16
    Description: A survey of the ecology of the octopus Eledone cirrhosa in Scottish waters is compiled from structured interviews with fishermen, records of occurrence in traps (for lobster and crab), and a research vessel survey. This species is widespread and common throughout the inshore waters covered by fishing activity (shoreline- 140 m) on bottom types ranging through rock, stones, sand and mud. It is caught in all months of the year but is especially common inshore in the summer (July-September) and further offshore on trawling grounds in October-December. The octopus is a normal and regular predator of large Crustacea (Hotnarus, Nephrops, Cancer) caught in commercial traps but gut contents yield little identifiable dietary remains.
    Type: Article , PeerReviewed
    Format: text
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  • 3
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    Crustacea in the diet of Eledone cirrhosa (Mollusca: Cephalopoda) determined by serological methods (1986)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 66 . pp. 867-879.
    Details
    Publication Date: 2020-07-16
    Description: Serological methods for prey identification have been applied to the gut contents of a field sample of 100 Eledone cirrhosa from the Moray Firth and 7 from the Sound of Jura. Protein extracts from the crop were electrophoresed (Laurell rockets) into antisera raised against potential crustacean prey species, Cancer pagurus, Carcinus maenas, Crangon crangon, Liocarcinus spp. and Nephrops norvegicus. The strengths of the resulting reactions were evaluated on the basis of peak height, staining density and the number of homocentric peaks of immune precipitates. Sixty-two of the 100 Moray Firth animals gave a positive reaction to one or more of the antisera and the most critical assessment of the results ranked the incidence of the prey as Liocarcinus (15) 〉 Nephrops (10) 〉 Cancer (8) 〉 Crangon (2) 〉 Carcinus (0), a total of 35 reactions from 28 animals. Absence of a reaction in the 38 animals from which appreciable sample volumes were also obtained indicates that alternative prey had been consumed. Of the 7 Sound of Jura animals, 4 gave a positive reaction to Nephrops alone. A total of only 24 animals gave any indication of diet by visual recognition of remains. The value and difficulties of the methodology are discussed.
    Type: Article , PeerReviewed
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  • 4
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    Influence of an electric light on the capture of deep-sea fish in Biscay (1986)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 66 (02). pp. 483-496.
    Details
    Publication Date: 2020-07-16
    Description: Recently the influence of an electric light on the capture of the main groups of deep sea animals by a midwater trawl was described and discussed (Clarke & Pascoe, 1985). With regard to fish it was shown that at depths close to 800 m the total number, the total volume, the volume of the ten largest and the volume of the single largest fish all increased significantly when an electric light was used on the headline of the trawl when compared with controls with the light off. These experiments were carried out both in the Bay of Biscay and off Madeira.
    Type: Article , PeerReviewed
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  • 5
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    Methods for the validation of squid age from statoliths (1986)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 66 (02). pp. 505-526.
    Details
    Publication Date: 2020-07-16
    Description: Growth laminations were first noted in squid statoliths by Clarke (1966), who suggested they might be useful for age determination. Spratt (1978) presented a detailed age analysis of Loligo opalescens Berry, 1911, arguing that some rings in the cephalopod statolith were deposited daily, as are fish otoliths (Panella, 1971). Growth rings in Illex illecebrosus (Lesueur, 1921) statoliths were illustrated by Lipinski (1978) with similar interpretation to that of Spratt (op. cit.). Several further attempts have been made to validate and/or to discuss age determination from statoliths (Hurley, Drew & Radtke, 1979; Hurley et al. 1983; Wiborg, 1979; Hurley & Beck, 1980; Kristensen, 1980; Lipinski, 1980, 1981; Rosenberg, Wiborg & Bech, 1981; Martins, 1982; Radtke, 1983; Dawe et al. 1984), and several other attempts are in preparation (R. J. Hanlon, G. V. Hurley, M. R. Clarke & R. L. Radtke, personal communications).
    Type: Article , PeerReviewed
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  • 6
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    Influence of 70 Watt Electric Lights on the Capture of Fish By Otter Trawl Off Plymouth (1986)
    Cambridge University Press
    In:  Journal of the Marine Biological Association of the United Kingdom, 66 (03). p. 711.
    Details
    Publication Date: 2020-07-16
    Description: The effect of two 70 W underwater electric lamps on the catch rate of a commercial bottom otter trawl was determined by comparative trials both at night and in daylight. It was found that, although the overall numbers and weights of fish caught did not differ, most of the species which were caught in large enough numbers for a judgement to be made showed a reaction to light. Three species, Trachurus trachurus, Merlangius merlangus and Trisopterus minutus were attracted and four species, Eutriglagurnardus, Micromesistius poutassou, Merluccius merluccius and Limanda limanda were scared off by light. The possible use of lights to further the development of selective commercial bottom trawling by attracting or scaring particular species is discussed.
    Type: Article , PeerReviewed
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  • 7
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    The interdial macrofauna of Nigg bay (1986)
    Royal Society of Edinburgh | Cambridge University Press
    In:  Proceedings of the Royal Society of Edinburgh, 91B . pp. 113-141.
    Details
    Publication Date: 2020-11-04
    Description: Surveys of the interdial macrofauna and sediment characters of Nigg Bay, Moray Firth, were carried out between 1981 and 1985. Permanent stations were located at the intersections of a half-kilometre grid covering the entire interdial area and sampled for infauna using replicate cores. Estimates were also made of mussel and lugworm densities from quadrats and cast counts respectively. The biomass of selected species that constitute important resources for higher tropic levels were also estimated. The sediment for each station was analysed for median particle diameter and slit content. The infaunal data were analysed by Detrended Correspondence Analysis. This indicated that tida height was the most important factor governing the distribution and abundance of the interdial communities. Sediment characters were only poorly related to distribution patterns. The bay has a rich fauna and is biologically similar to other outer bays of the Moray Firth, which, like Nigg, are important areas for wildfowl and waders. Comparison of survey data from different years indicate that there are natural cycles in some sediment and biological characters of Nigg Bay.
    Type: Article , PeerReviewed
    Format: text
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