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  2. Der brack-wasserlebende PolychaetMarphysa gravelyi vermag alle getesteten Ionen seines Innenmediums — Chloride, Natrium, Kalium — gegenüber den im Außenmedium vorhandenen Konzentrationen dieser Ionen zu reguliere...

    Authors: Bhupalam Krishnamoorthi and S. Krishnaswamy

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880937

    Content type: OriginalPaper

    Published on:

  3. Der Einfluß verschiedener Temperatur-Salzgehaltskombinationen (25°, 30° und 35° C; Süßwasser, 9,7‰, 19,4‰ und 32,4‰ S) auf die Quantität des verbrauchten Sauerstoffs wurde für verschieden große Fische ermittel...

    Authors: Vipparti Parvatheswararao

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880936

    Content type: OriginalPaper

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  4. The dynamics of the early development of the chaetognathSagitta setosa Joh. Müll. has been studied up to the completed gastrulation, the leaving of the primordial germ cells and the closure of the prostoma. Compa...

    Authors: Willi Kuhl and Gertrud Kuhl

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880935

    Content type: OriginalPaper

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  5. Several methods have been used hitherto to isolate amino acids from sea water. These methods are discussed in the first part of this paper, which is primarily concerned with the presentation of a new method, t...

    Authors: Heinz Schaefer

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880933

    Content type: OriginalPaper

    Published on:

  6. Acrosiphonia cultures proved to be very suitable for observations on growth and structure in this alga. Only the apical cells of the branched monosiphonous filamentous alga increase in length, and it is easy to ...

    Authors: Peter Kornmann

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880932

    Content type: OriginalPaper

    Published on:

  8. Authors:

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612100

    Content type: Announcement

    Published on:

  9. A new polychaete genus,Parapodrilus psammophilus, is described on the basis of individuals caught in the sandy interstitial zone on the island Sylt (North Sea, German Bight). The main features of the new polychae...

    Authors: Wilfried Westheide

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612099

    Content type: OriginalPaper

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  10. Anatomy and muscle arrangement of the mastax and the labrum ofNeomysis vulgaris are described. For this purpose the mastax as a whole was made transparent and its chitin preparation then covered with minute silve...

    Authors: Klaus Haffer

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612098

    Content type: OriginalPaper

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  11. In 1964 and 1965 a research vessel using a special “shrimp trawl” with various mesh sizes caught severalM. Poutassou, a fish previously known to occur only in the Atlantic and in the deeper waters of the northern...

    Authors: Jürgen Flüchter and Harald Rosenthal

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612097

    Content type: OriginalPaper

    Published on:

  12. L'organogénèse du bourgeonnement médusaire polypodial est étudié chezRathkea octopunctata et comparé avec celui du bourgeonnement médusaire manubrial de la même espèce. A l'encontre de ce dernier exclusivement ec...

    Authors: Jean Bouillon and Bernhard Werner

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612096

    Content type: OriginalPaper

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  13. Graphical analysis of growth data obtained on the fishRoccus americanus byMansueti (1961a) has led to the development of a new growth formula, which seems to be more appropriate for expressing quantitative aspect...

    Authors: Friedrich Krüger

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612095

    Content type: OriginalPaper

    Published on:

  14. With progressing age, the food vacuoles ofMetafolliculina adrewsi develop a border of folds, which attains its most pronounced differentiation at a stage where maximum resorption of nutrient substances presumably...

    Authors: Gotram Uhlig, Hans Komnick and Karl-Ernst Wohlfarth-Bottermann

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612094

    Content type: OriginalPaper

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  15. Earlier experiments on folliculinids have been conducted primarily by employing the glass-plate method. The cultivation of sessile, loricated folliculinids under non-sterlile conditions is rather difficult bec...

    Authors: Gotram Uhlig

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612093

    Content type: OriginalPaper

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  16. No answer to this question is presented in this article. Two species, morphologically alike, differ in their life-cycles. One of these species has hitherto been found only once in a culture ofSpongomorpha aerugin...

    Authors: Peter Kornmann

    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612092

    Content type: OriginalPaper

    Published on:

  18. The described feeding experiment on rats comprised three groups, each consisting of 9 females. The control group was fed a commercial pellet diet fortified with brewer’s yeast and whole milk. Groups II and III...

    Authors: B. Gjönnes and A. Helgebostad

    Citation: Acta Veterinaria Scandinavica 1965 6:BF03547081

    Content type: OriginalPaper

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  20. Compared to normal pregnancy an evident reduction of the electrical potentials and electrochemical gradients was found in cases of hydrallantois without primary foetal deformity. The permeability of chorio-all...

    Authors: J. M. Skydsgaard

    Citation: Acta Veterinaria Scandinavica 1965 6:BF03547077

    Content type: OriginalPaper

    Published on:

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