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  1. In Helgoland Bight (Inner German Bight, North Sea) drifting water masses were investigetad at 3 stations for 4–8 hours during August and November, 1968. Measurements of salinity, temperature, turbidity and ses...

    Authors: W. Hickel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609684
    Content type: OriginalPaper Published on:

  2. A methodological improvement of automated phosphate analysis in sea water is described. The method is based on the photometric measurement of the blue-coloured compound produced by the reaction of phosphate wi...

    Authors: P. Mangelsdorf
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609683
    Content type: OriginalPaper Published on:

  3. The mechanism of pressure perception in animals without gasfilled spaces is still obscure. Larvae of numerous species of marine invertebrates respond to pressure changes; but the nature and direction of this r...

    Authors: H. -H. Sommer
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609681
    Content type: OriginalPaper Published on:

  4. Twentytwo new and 8 known species of gastrotrichs are described from eulittoral and sublittoral sandy bottoms of the northern Adriatic Sea. The MgCl2 method was used for extraction from the substrate. Only living...

    Authors: H. Schrom
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609680
    Content type: OriginalPaper Published on:

  5. Der Einfluß der vorstehend genannten Faktoren wurde auf die Überlebensfähigkeit vonEscherichia coli, Staphylococcus aureus undSerratia marinorubra in Meerwasser untersucht. Aktivitäten mariner Bakterien führten n...

    Authors: K. Moebus
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609679
    Content type: OriginalPaper Published on:

  6. Authors: P. Ax, G. -A. Paffenhöfer, O. Kinne and W. Hickel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609694
    Content type: Addendum Published on:

  7. In form of “wave characteristics”, results of measurements of mean and maximum wave heights as well as mean periods of the sea at four observation stations in the sea area of the Piep (German Bight) are presen...

    Authors: H. Gienapp
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609693
    Content type: OriginalPaper Published on:

  8. Die durch Wasserverunreinigungen bedingten räumlichen und zeitlichen Veränderungen der Lebensgemeinschaften von Invertebraten, die auf dem Haftorgan der BraunalgeLaminaria hyperborea Gunn. Fosle siedeln, wurden u...

    Authors: D. J. Jones
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609692
    Content type: OriginalPaper Published on:

  12. L'ovaire deTilapia mossambica a été étudié dans le but de préciser l'origine des poussées ovocytaires. Après la ponte l'ovaire n'est pas vide pour autant, et il y subsiste des ovocytes à tous les stades du dévelo...

    Authors: C. M. Aravindan and K. G. Padmanabhan
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609688
    Content type: OriginalPaper Published on:

  14. The tentaculate ctenophorePleurobrachia pileus Fabr. is one of the most abundant holoplanktonic invertebrates of the German Bight (North Sea). It has been successfully cultivated under laboratory conditions at He...

    Authors: W. Greve
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01609686
    Content type: OriginalPaper Published on:

  16. Authors:
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01616314
    Content type: Announcement Published on:

  17. A new Japanese species ofOphryotrocha is described. It is characterized by oblong cells forming star-shaped glands of unknown function on the 6th to 12th of the youngest segments.Ophryotrocha notoglandulata n. sp...

    Authors: H. -D. Pfannenstiel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01616313
    Content type: OriginalPaper Published on:

  18. This paper is part of a systematic reconsideration of the family Didemnidae. Two SCUBA-diving series (October 1970, June 1971) have been carried out at the island of Helgoland (North Sea), in order to recaptureDi...

    Authors: F. Lafargue
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01616312
    Content type: OriginalPaper Published on:

  21. Zur quantitativen Bestimmung von Brom in organischen Substanzen bei Anwesenheit anderer Halogene wird eine einfache spektrophotometrische Methode beschrieben. Bei 400 nm ist die Absorption in Chloroform der Br...

    Authors: P. Saenger
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1972 23:BF01616309
    Content type: OriginalPaper Published on:

  23. Authors: W. E. Krumbein, H. -P. Bulnheim, W. Westheide, H. Rosenthal, A. Gaertner and W. Hickel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611130
    Content type: Addendum Published on:

  24. Among the simple unsaturated carbonic acids, acrylic acid is a comparatively specific inhibitor forStaphylococcus aureus, Escherichia coli and other bacteria. Insignificant bactericidal action can only be observe...

    Authors: K. -W. Glombitza and R. Heyser
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611129
    Content type: OriginalPaper Published on:

  25. Die Arbeit berichtet über erste Ergebnisse einer ökologischen Untersuchung an verschmutzten Küstengewässern im Bereich der Grafschaften Durham und Midlothian (im Nordosten Englands). Die untersuchten Küstenstr...

    Authors: D. J. Jones
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611128
    Content type: OriginalPaper Published on:

  26. Wie in anderen Teilen der Nordsee traten auch in der Helgoländer Bucht im August 1968 starke Wucherungen von Dinoflagellaten auf. Untersuchungen des Planktons und der Wassereigenschaften auf der Helgoland-Reed...

    Authors: W. Hickel, E. Hagmeier and G. Drebes
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611127
    Content type: OriginalPaper Published on:

  30. The marine enchytraeidMarionina spicula (Leuckart), which mainly occurs on sandy shores, shows a peculiar haptic behaviour depending upon specific biological and morphological features, characteristic for many in...

    Authors: O. Giere
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611123
    Content type: OriginalPaper Published on:

  32. The tentaculate ctenophorePleurobrachia pileus Fabr. belongs to the most abundant holoplanktonic zooplankters of the German Bight (North Sea). Its population dynamics have been studied from May 1966 to August 196...

    Authors: W. Greve
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611121
    Content type: OriginalPaper Published on:

  33. Authors: P. Ax, H. Rosenthal, M. Gillbricht, W. Hickel, B. Werner, G. Uhlig and G. Apelt
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01609464
    Content type: Addendum Published on:

  34. Nuclear studies of zygotes obtained from the wild type ofAcrosiphonia arcta (Dillw.)J. Ag. from Helgoland were carried out in order to test the hypothesis that these algae might be of apocaryogamic origin. It is ...

    Authors: S. Jónsson
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01609463
    Content type: OriginalPaper Published on:

  35. Egg and embryo development ofCorydendrium parasiticum (L.) (Hydroida, Athecata) has been examined with special regard to ultrastructural changes of the oocytes during vitellogenesis. It has been established that ...

    Authors: K. H. Glätzer
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01609462
    Content type: OriginalPaper Published on:

  37. This paper summarizes our knowledge on morphology, physiology and experimental ecology of the polychaeteArenicola marina (L.). Morphological and ecological aspects are illustrated by schematic drawings. The nutri...

    Authors: F. Krüger
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01609460
    Content type: OriginalPaper Published on:

  38. Authors:
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611368
    Content type: Legacy Published on:

  39. Es wird ein Gerät zur Messung des Volumens von kleinen Wirbellosen beschrieben, das leicht zu konstruieren und einfach zu handhaben ist. Es basiert auf dem Prinzip der Verdrängung einer Wassersäule und gestatt...

    Authors: G. Persoone
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611367
    Content type: OriginalPaper Published on:

  42. This paper presents a brief description of the most common method of sampling foraminiferans from recent sediments and of the foraminiferan fauna of the North Sea. Distribution charts of foraminiferans in the ...

    Authors: B. Gabel
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1971 22:BF01611364
    Content type: OriginalPaper Published on:

  43. 145 species of prosobranchs from the littoral zone of the Caribbean coast of Colombia, South America, are described and illustrated. The species belong to 79 genera of 44 families. Most of the species were col...

    Authors: R. Kaufmann and K. -J. Götting
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1970 21:BF01609067
    Content type: OriginalPaper Published on:

  47. Plasmogamic parthenogenesis and facultative caryogamy have been introduced as new definitions into literature on algal development byJónsson (1964a, b). In his studies on life cycles ofAcrosiphonia incurva andA. ...

    Authors: P. Kornmann
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1970 21:BF01609063
    Content type: OriginalPaper Published on:

  50. Authors: O. Kinne and H. P. Bulnheim
    Citation: Helgoländer wissenschaftliche Meeresuntersuchungen 1970 21:BF01608638
    Content type: EditorialNotes Published on:
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Helgoland Marine Research

ISSN: 1438-3888

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