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  1. The phaeophyceanF. serratus and the rhodophyceanD. sanguinea came from the North Sea (30‰ S) and the Baltic Sea (15‰ S). The activity of photosynthesis was taken as a criterion of algae vitality. Experiments were...

    Authors: Uta R. Nellen
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01611429
    Content type: OriginalPaper Published on:

  2. In spring 1965 eggs of the soleSolea solea L. were hatched in the Marine Station of the Biologische Anstalt Helgoland (island Helgoland, North Sea). The newly hatched larvae were raised under laboratory condition...

    Authors: Harald Rosenthal
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01611424
    Content type: OriginalPaper Published on:

  3. Das antibakterielle Spektrum von sechzig Antibiotika produzierenden Mikroorganismen mariner Herkunft wurde bestimmt. Zwanzig verschiedene Bakterienarten dienten als Testorganismen; von ihnen waren fünfzehn gra...

    Authors: Roshan B. Baam, Naren M. Gandhi and Yvonne M. Freitas
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612664
    Content type: OriginalPaper Published on:

  4. Aus 41 Seewasserproben verschiedener Herkunft wurden 60 Stämme mariner Bakterien mit antagonistischen Eigenschaften gegenüberStaphylococcus aureus undSalmonella typhosa isoliert. Die Wirkung verschiedener Nährsto...

    Authors: Roshan B. Baam, Naren M. Gandhi and Yvonne M. Freitas
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612663
    Content type: OriginalPaper Published on:

  5. Die Wirkung verschieden behandelter zellfreier Filtrate einer Variante des marinen BakteriumsPseudomonas piscicida, die antibiotische Wirksamkeit gegen die im marinen Milieu vorkommende HefeRhodotorula minuta bes...

    Authors: John D. Buck and Samuel P. Meyers
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612662
    Content type: OriginalPaper Published on:

  6. The fine structure of various stages of development of oocytes of several marine teleosts was studied by electron microscope. The primary membrane of the oocyte represents a typical cell membrane. The contact ...

    Authors: Klaus-Jürgen Götting
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612661
    Content type: OriginalPaper Published on:

  7. Es wird der Nachweis geführt, daß die Glykogenextraktion aus den Geweben einiger mariner Invertebraten(Balanus balanoides, Nephtys hombergi, Carcinus maenas, Mytilus edulis) durch 5% Trichloressigsäure von dem Ho...

    Authors: Harold Barnes and John R. Heath
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612660
    Content type: OriginalPaper Published on:

  10. Cultures ofUrospora wormskioldii were used for studying growth and details of cell-division in this alga. In general, all cells of a filament are able to divide in a four-day-rhythm. During this period, the lengt...

    Authors: Peter Kornmann
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612657
    Content type: OriginalPaper Published on:

  11. Einzelpolypen eines Klons vonC. multicornis Forskål wurden schrittweise in 12 verschiedene Temperatur-Salzgehalts-Kombinationen überführt und — während sie zu neuen Kolonien heranwuchsen — das Längenwachstum ihre...

    Authors: Otto Kinne and Gustav-Adolf Paffenhöfer
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1966 13:BF01612656
    Content type: OriginalPaper Published on:

  13. 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:

  14. 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 Published on:

  15. 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 Published on:

  16. The carbohydrates dissolved in sea water have been mostly determined in terms of total concentration. Only in a few cases have they been identified and single components measured quantitatively. In the present...

    Authors: Heinz Schaefer
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01880934
    Content type: OriginalPaper Published on:

  17. 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:

  18. 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:

  19. Authors:
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612566
    Content type: Announcement Published on:

  20. Début juin 1964, plusieurs cadres dotés de lames de nature différente furent immergés dans le port d'Ostende dans le but de détecter des différences éventuelles dans la colonisation des substrats. Deux mois pl...

    Authors: Guido Persoone
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612565
    Content type: OriginalPaper Published on:

  22. The new species is marine, whereasPorphyridium purpureum (= P. cruentum), first known only from terrestrial habitats, is halophilic and has been found several times in seawater.Porphyridium violaceum differs from...

    Authors: Peter Kornmann
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612563
    Content type: OriginalPaper Published on:

  23. Upon observing the tidal section of the Elbe River, it was found that the elvers (Anguilla anguilla L.), gathering in shoals immediately below the surface of the water, moved only in the early part of the morning...

    Authors: Friedrich-Wilhelm Tesch
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612562
    Content type: OriginalPaper Published on:

  26. In order to investigate the activity patterns of the shore crabCarcinus maenas, an apparatus was developed which allows the crab to move freely about in its container. The crab has the possibility to move on or u...

    Authors: Friedrich Krüger
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612559
    Content type: OriginalPaper Published on:

  27. Erbgleiche Polypen vonClava multicornis Forskål wurden in 12 verschiedenen Temperatur-Salzgehalts-Kombinationen durch asexuelle Vermehrung zu neuen Kolonien herangezogen und an den adulten Hydranthen dieser erbgl...

    Authors: Otto Kinne and Gustav-Adolf Paffenhöfer
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612558
    Content type: OriginalPaper Published on:

  28. Authors:
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1965 12:BF01612100
    Content type: Announcement Published on:

  29. 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 Published on:

  30. 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 Published on:

  31. 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:

  32. 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 Published on:

  33. 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:

  34. 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 Published on:

  35. 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 Published on:

  36. 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:

  38. Authors:
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612381
    Content type: Announcement Published on:

  39. A new simple glass-made apparatus for very exact volume determinations of biological material is described. The accuracy and reproducibility of the measurements are demonstrated.

    Authors: Hanswerner Kesseler
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612379
    Content type: OriginalPaper Published on:

  40. A total of 298 strains belonging to the fluorescent group of the genusPseudomonas were isolated from samples taken from the Überlinger See (Bodensee). 174 of these strains cause gelatin to liquidize. The ability ...

    Authors: Rainer Ruschke
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612377
    Content type: OriginalPaper Published on:

  42. Samples of cell sap in amounts suitable for chemical analysis of mineral compounds were obtained by high speed centrifugation of several frost-killed (-20° C) Helgoland algae under paraffin oil. In order to ca...

    Authors: Hanswerner Kesseler
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612374
    Content type: OriginalPaper Published on:

  43. The results of my formerly published investigation on the life-cycle ofSpongomorpha aeruginosa (= Sp. lanosa) are confirmed:Codiolum petrocelidis from Helgoland as type-locality is the sporophytic stage of the ab...

    Authors: Peter Kornamann
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612372
    Content type: OriginalPaper Published on:

  46. Displacement preening in larvae ofAeschna cyanea is performed in the course of searching behaviour whenever a prey-dummy is suddenly removed. Experiments with a group of animals of the same age, size and origin w...

    Authors: Manfred Hoppenheit
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612369
    Content type: OriginalPaper Published on:

  48. Towing tests performed with a modified Gulf III-sampler (“Hai”) with flowmeters revealed an increase in the amount of water filtered per nautical mile with increasing towing speeds from 2.5 to about 6 knots. A...

    Authors: Gotthilf Hempel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612367
    Content type: OriginalPaper Published on:

  49. A brief description is given of a method permitting the excavation ofArenicola burrows. A special digging box (“Stechkasten”) has been constructed (Abb. 1), allowing a block of the substratum to be cut out and th...

    Authors: Erich Ziegelmeier
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612366
    Content type: OriginalPaper Published on:

  50. In spite of their structural diversity, estuarine organisms exhibit close functional similarities, particularly with respect to the compensatory measures employed to counteract the ill effects of their rough o...

    Authors: Otto Kinne
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1964 11:BF01612365
    Content type: OriginalPaper Published on:
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Helgoland Marine Research

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