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  • Other Sources  (4)
  • Wiley  (4)
  • American Association of Petroleum Geologists (AAPG)
  • 1980-1984  (4)
  • 1925-1929
  • 1980  (4)
  • 1
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    General Oceanography (1980)
    Wiley
    In:  Wiley, New York, USA, 626 pp. 2nd revised edition
    Details
    Publication Date: 2013-05-17
    Type: Book , NonPeerReviewed
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  • 2
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    Destribution, abundance and life cycles of Oligochaeta from the marine hygropsammal, with special reference to the Phallodrilinae (Tubificidae) (1980)
    Wiley
    In:  Internationale Revue der gesamten Hydrobiologie und Hydrographie, 65 (6). pp. 835-848.
    Details
    Publication Date: 2017-05-31
    Description: Tubificid and enchytraeid oligochaetes are common members of the interstitial fauna of sandy beaches. Their abundance dynamics, life cycles and distribution patterns were investigated at two beaches on the western Baltic Sea and at a North Sea beach (Isle of Sylt). Populations of 115,000 ind./m2 were found at protected Baltic beaches. Reproduction of the tubificids, Phallodrilus monospermathecus and Spiridion insigne takes place within a well defined breeding period once a year. The market horizontal and vertical distribution patterns of various tubificid and enchytraeid species are elucidated by preference reactions to several physiographic parameters, such as oxygen and water content of the sediment, and salinity.
    Type: Article , PeerReviewed
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  • 3
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    Stomach contents analysis-a review of methods and their application (1980)
    Wiley
    In:  Journal of Fish Biology, 17 (4). pp. 411-429.
    Details
    Publication Date: 2018-05-16
    Description: Methods for analysing fish stomach contents are listed and critically assessed with a view to their suitability for determining dietary importance—this term is defined. Difficulties in the application of these methods are discussed and, where appropriate, alternative approaches proposed. Modifications which have practical value are also considered. The necessity of linking measurements of dietary importance to stomach capacity is emphasized and the effects of differential digestion upon interpretation of stomach contents outlined. The best measure of dietary importance is proposed as one where both the amount and bulk of a food category are recorded.
    Type: Article , PeerReviewed
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  • 4
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    Food, feeding ecology and ecological segregation of seabirds at South Georgia (1980)
    Wiley
    In:  Biological Journal of the Linnean Society, 14 (1). pp. 103-131.
    Details
    Publication Date: 2016-09-09
    Description: At the sub-Antarctic island of South Georgia 25 of the 29 breeding species are seabirds. Fifteen of these have recently been studied in some detail. By examining the timing of their breeding seasons and their diet and feeding ecology (especially feeding techniques and potential foraging ranges), the nature of their ecological isolating mechanisms, and in particular the way in which they partition the resources of the marine environment, are reviewed. Although breeding season adaptations occur (winter breeding in Wandering Albatross and King Penguin; out of phase breeding in two species-pairs of small petrels) these are less important than dillerences in food and feeding ecology. There is a fundamental distinction between the niche of pursuit-diving species (mainly penguins) and the remainder which are basically surface-feeders. The two abundant krill-eating penguins show clear differences in feeding zones. Three albatrosses and a petrel feed mainly on squid and there are differences in both the species and size of the prey of each. The remaining seabirds chiefly take krill (although the giant petrels are extensive scavengers and some smaller petrels specialize on copepods) and utilize different feeding methods and areas to do so. Various adaptations related to inshore and offshore feeding zones are discussed. Although most species possess a combination of ecological isolating mechanisms additional evidence for the particular importance of dietary differences is presented.
    Type: Article , PeerReviewed
    Format: text
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