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Persistent, vertical-migration rhythms in benthic microflora.: II. Field and Laboratory Studies On Diatoms From The Banks Of The River Avon

  • F. E. Round (a1) and J. D. Palmer (a2)
Abstract

The vertical migration of two Euglena species and several diatom species into and out of the sediment on the banks of the River Avon has been studied under natural conditions. All species have been shown to migrate vertically upwards when exposed during daylight. Tidal flooding of the sediment is generally preceded by re-burrowing of the algae beneath the surface. Methods have been devised to follow these migrations in both the field and laboratory. Laboratory experiments show that these migrations are rhythmic, continuing under constant illumination and temperature and removed from tidal influence. The effect of three different temperatures and three different light intensities has been investigated. Transfer from low to high temperatures has been shown to reset the phase of the rhythm. The results are discussed in relation to other work and to the ‘biological clock’ hypothesis.

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Aleem A. A., 1950. The diatom community inhabiting the mud flats at Whitstable. New Phytol., Vol. 9, pp. 174–88.
Bracher R., 1919. Observation on Euglena deses. Ann. Bot., Vol. 33, pp. 93108.
Bracher R., 1929. The ecology of the Avon banks at Bristol. J. Ecol., Vol. 17, pp. 3581.
Bracher R., 1937. The light relation of Euglena limosa Gard. I. The influence of intensity and quality of the light on phototaxy. J. Linn. Soc. (Bot.), Vol. 51, pp. 2342.
Bruce V. G. & Pittendrigh C. S., 1956. Temperature indpendence in a unicellular ‘clock’. Proc. natn. Acad. Sci. U.S.A., Vol. 42, pp. 676–82.
Callame B. & Debyser J., 1954. Observations sur les mouvements des diatomées à la surface des sédiments marins de la zone intercotidale. Vie Milieu, T. 5, pp. 242–9.
Fauvel P., 1907. A propos du rhythme des marées chez les diatomees littorales. C. r. Séanc. Soc. Biol., T. 62, p. 242.
Fauvel P. & Bohn G., 1907. Le rhythme des marées chez les diatomées littorales. C. r. Séanc. Soc. Biol., T. 62, pp. 121–3.
Faure-Fremiet E., 1950. Rhythme de marée d'une Chromulina psammophile. Bull. biol. Fr. Belg., T. 84, pp. 207–14.
Faure-Fremiet E., 1951. The tidal rhythm of the diatom Hantzschia amphioxys. Biol. Bull. mar. biol. Lab., Woods Hole, Vol. 100, pp. 173–7.
Ganapati P.N., Lakshmana Rao M.V. & Subbarao D. V., 1959. Tidal rhythms of some diatoms and dinoflagellates inhabiting the intertidal sands of the Visakhapatnam Beach. Curr. Sci., Vol. 11, pp. 450–51.
Gard M., 1919. Biologie d'une nouvelle espèce d'Euglène (Euglena limosa nov. sp. C. r. Sèanc. hebd. Acad. Sci., Paris), T. 169, pp. 1423–25.
Gard M., 1922. Recherches sur une nouvelle espèce d'Euglène (Euglena limosa nov. sp.). Bull. Soc. bot. Fr., T. 69, pp. 184–96.
Herdman E. C., 1921–24. Notes on dinoflagellates and other organisms causing discoloration of the sand at Port Erin. Proc. Trans. Lpool biol. Soc, Vol. 35, PP. 5963; Vol. 36, pp. 15–30; Vol. 38, pp. 75–84.
Hopkins J. T., 1963. A study of the diatoms of the Ouse Estuary, Sussex. I. The movement of the mud-flat diatoms in response to some chemical and physical changes. J. mar. biol. Ass. U.K., Vol. 43, pp. 653–63.
Hustedt F., 1930. Bacilariophyta (Diatomaceae). Die Süsswasser-Flora Mitteleuropas, Heft 10. Jena: Gustav Fischer.
Laurie R. D., 1913. On the bionomics of Amphidinium operculatum Clap. and Lach. Rep. Br. Ass. Advmt Sci., 1913, p. 509.
Nultsch W., 1956. Studien über die Phototaxis der Diatomeen. Arch. Protistenk., Bd. 101, pp. 168.
Palmer J. D., 1960. The role of moisture and illumination on the expression of the rhythmic behaviour of the diatom Hantzschia amphioxys. Biol. Bull. mar. biol. Lab., Woods Hole., Vol. 119, p. 330.
Palmer J. D. & Round F. E., 1965. Persistent vertical-migration rhythms in benthic microflora. I. The effect of light and temperature on the rhythmic behaviour of Euglena obtusa. J. mar. biol. Ass. U.K., Vol. 45, pp. 567–82.
Perkins E. J., 1960. The diurnal rhythm of the littoral diatoms of the river Eden estuary, Fife. J. Ecol, Vol. 48, pp. 725–8.
Pohl F., 1948. Tagesrhythmus im phototaktischen Verhalten der Euglena gracilis. Z. Naturf., Bd. 36, pp. 367–74.
Reiman B. E. F. & Lewin J. C., 1964. The diatom genus Cylindrotheca Rabenhorst. Jl R. microsc. Soc, Vol. 83, pp. 283–96.
Round F. E., 1966. A new diatom species from the River Avon. J. mar. biol. Ass. U.K., Vol. 46, pp. 187–90.
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Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
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