Blar i Published by IMR på emneord "pigghå"

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    • Kjønnsfordelingen hos pigghåen 

      Aasen, Olav (Fisken og havet;1964 - Nr. 4, Journal article, 1964)
      In a sample of spiny dogfish the mothers with fully grown (or nearly fully grown) embryos were sorted out. The embryos were measured and sexed. The proportion of males to females, is practically speaking 50: 50. The number ...

    • Norske pigghåmerkinger 1958-61 

      Aasen, Olav (Fisken og havet;1962 - Nr. 3, Journal article, 1962)
      The Norwegian taggings of spiny dogfish are considered for the period 1958-61. The main results are that: a) there exists a regular migration between the British Isles (summer) and the Norwegian coastal waters (winter) and ...

    • Norske pigghåmerkninger 1962 

      Aasen, Olav (Fisken og havet;1963 - Nr. 2, Journal article, 1963)
      The Norwegian taggings of the spur dog (Squalus achantias) for 1962 are considered. The main points are: 1. There still exists an extensive migration between the British Isles (summer) and Norway (winter) and vice versa; ...

    • Norske pigghåundersøkelser i 1963 

      Aasen, Olav (Fisken og havet;1964 - Nr. 4, Journal article, 1964)
      The present article is an account of the Norwegian investigations of the spur-dog in 1963. The results of the tagging experiments are considered with respect to the distribution of the recaptures in time and localities. A ...

    • Pigghåundersøkelsene 

      Aasen, Olav (Fisken og havet;1961 - Nr. 1, Research report, 1961)
      In the first half of this paper is given an abbreviated account of the biology of the spur dog. In the latter half of the paper the Norwegian dogfish taggings are dealt with: a. A short description of the tags used. b. ...