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Cultivation ofLaminaria hyperborea in situ and in continuous darkness under laboratory conditions
Kultivierung vonLaminaria hyperborea in situ und im Dauer-Dunkel unter Laboratoriumsbedingungen
Helgoländer wissenschaftliche Meeresuntersuchungen volume 20, pages 79–88 (1970)
Kurzfassung
Zwei- und dreijährige Exemplare der BraunalgeLaminaria hyperborea wurden bei Helgoland auf untermeerische Zuchtstationen in 2 und 6 m Wassertiefe gebracht. In 2 m Tiefe wurde die maximale Wachstumsrate in der ersten Maihälfte erreicht, in 6 m Tiefe während der ersten Junihälfte. Verglichen mit der im Juli erreichten Thallusgröße der Pflanzen in 2 m Tiefe, erreichten die Pflanzen in 6 m Tiefe mindestens 75 % der Phylloidfläche, aber nur 1/3 der Stiellänge. Dunkelgehaltene Exemplare vonLaminaria hyperborea zeigten von Februar bis Mai nur dann ein beträchtliches Wachstum des neuen Phylloids, wenn das alte Phylloid an der Pflanze belassen wurde.
Summary
1. Two and three year old specimens ofLaminaria hyperborea were transplanted to sub-tidal growth stations at 2 and 6 m water depth, respectively.
2. Maximum growth rate occurred in early May in specimens growing at 2 m depth, and in early June at 2 m depth.
3. Frond area size, attained by the specimens growing at 6 m depth in July, was at least 75 % of frond area size attained at 2 m depth. Stipe length of plants at 6 m depth, as recorded in July, was only about 1/3 of the stipe length attained at 2 m depth.
4. Growth rates of new phylloids ofLaminaria hyperborea specimens kept in darkness from February until May are considerably reduced, if the old frond is amputated.
Literature cited
Black, W. A. P., 1948. Seasonal variation in chemical constitution of some of the sublittoral seaweeds common to Scotland. Part I.Laminaria cloustoni.J. Soc. chem. Ind., Lond. 67, 165–168.
—— &Dewar, E. T., 1949. Correlation of some of the physical and chemical properties of the sea with the chemical conditions of the algae.J. mar. biol. Ass. U.K. 28, 673–699.
Gessner, F., 1955. Hydrobotanik. Vol. 1. Energiehaushalt. VEB Dt. Verl. d. Wiss., Berlin, 517 pp.
Kain, J. M., 1964. Aspects of the biology ofLaminaria hyperborea. 3. Survival and growth of gametophytes.J. mar. biol. Ass. U.K. 44, 415–433.
—— 1965. Aspects of the biology ofLaminaria hyperborea. 4. Growth of early sporophytes.J. mar. biol. Ass. U.K. 45, 129–143.
Lüning, K., 1969a. Growth of amputated and dark-exposed individuals of the brown algaLaminaria hyperborea.Mar. Biol. 2, 218–223.
-- 1969b. Seasonal growth ofLaminaria hyperborea under recorded underwater light conditions near Helgoland.In: Proceedings of the 4th European Marine Biological Symposium, Bangor, North Wales, U.K. (in press).
Neushul, M. &Haxo, F. T., 1963. Studies on the giant kelpMacrocystis. 1. Growth of young plants.Am. J. Bot. 50, 349–359.
—— &Dahl, A. L., 1967. Composition and growth of subtidal parvosilvosa from Californian kelp forests.Helgoländer wiss. Meeresunters. 15, 480–488.
North, W. J., 1961. Experimental transplantation of the giant kelpMacrocystis pyrifera.Int. Seaweed Symp. 4 (Biarritz), 248–255.
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Lüning, K. Cultivation ofLaminaria hyperborea in situ and in continuous darkness under laboratory conditions. Helgolander Wiss. Meeresunters 20, 79–88 (1970). https://doi.org/10.1007/BF01609889
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DOI: https://doi.org/10.1007/BF01609889