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Frequency distribution studies of epipelic diatoms along an intertidal shore

Abstract

Live and dead cell counts of epipelic diatoms were analysed at 16 sites along a transect crossing a saltmarsh, sandflat, and mudflat at Berrow Flats, Somerset, U.K. Replicate monthly samples were taken from January 1982 to June 1984. The ratio of dead to live cells varied according to position along the transect. Temporal changes of the ratios did not display a cyclic seasonal pattern. The clustered mosaic of live cells and empty frustules on surface sediments was quantitatively assessed. Graphing variance against seasonal mean cell counts showed that the variance was proportional to the square of the mean. The Neyman Type A equation is suggested as a possible model to explain this relationship.

Literature Cited

  • Aleem, A. A., 1950. The diatom community inhabiting the mudflats at Whitestable. — New Phytol.49, 174–188.

    Google Scholar 

  • Bassindale, R., 1943. Studies on the biology of the Bristol Channel. 1. The physical environment and intertidal fauna of the southern shores of the Bristol Channel and Severn Estuary. — J. Ecol.31–32, 1–29.

    Google Scholar 

  • Eaton, J. W. & Moss B., 1966. The estimation of numbers and pigment contents in epipelic algal populations. — Limnol. Oceanogr.11, 584–595.

    Google Scholar 

  • Hendey, N. I., 1964. An introductory account of the smaller algae of British coastal waters. — Fishery Invest., Lond. (Ser. 4)5, 1–317.

    Google Scholar 

  • Hohn, M. H. & Hellerman, J., 1963. The taxonomy and structure of diatom populations from three eastern North American rivers using three sampling methods. — Trans. Am. microsc. Soc.,82, 250–329.

    Google Scholar 

  • Hope-Simpson, J. F. & Willis, A. J., 1955. Vegetation. In: Bristol and its adjoining counties. Ed. by C. M. MacInnes & N. F. Whittard. B.A.A.S., London, 91–93.

    Google Scholar 

  • Jonge, V. N. de, 1979. Quantitative separation of benthic diatoms from sediments using density gradient centrifugation in the colloidal silica LUDOX-TM. — Mar. Biol.51, 267–278.

    Article  Google Scholar 

  • Lund, J. W. G., 1942. Marginal algae of certain ponds with special reference to bottom deposits. — J. Ecol.30, 245–283.

    Google Scholar 

  • McIntire, C. D. & Moore, W. M. 1977. Marine littoral diatoms-ecological considerations. In: The biology of diatoms. Ed. by D. Werner. Blackwell, Oxford, 333–371.

    Google Scholar 

  • Patrick, R. & Reimer, C. W., 1966. The diatoms of the United States. — Monogr. Philadelphia Acad. nat. Sci., 13, 1–688.

    Google Scholar 

  • Pielou, E. C., 1969. An introduction to mathematical ecology. Wiley-Interscience, New York, 1–286.

    Google Scholar 

  • Riaux, C., 1983. Structure d'un peuplement estuarien de diatomées épipéliques du Nord-Finistère. —Oceanologica Acta6, 173–183.

    Google Scholar 

  • Taylor, L. R., 1961. Aggregation, variance and the mean. — Nature, Lond.100, 732–735.

    Google Scholar 

  • Teverson, R., 1982. Saltmarsh ecology in the Severn Estuary. — Internal Rep. Dept. Zool., Bristol Univ., Dept. Energy Contract Agreement. Ref. Nr.UKAEA E/SA/CON/1619/51/054, 1–100.

  • Venrick, E. L., 1978. Sampling design, sampling strategies. In: Phytoplankton manual. Ed. by A. Sournis. Unesco, Paris, 1–7.

    Google Scholar 

  • Whitelam, G. C., Lanarasi, T. & Coop, G. A., 1983. Rapid separation of microalgae by density gradient centrifugation in percol. — Br. phycol. J.18, 23–28.

    Google Scholar 

  • Wilson, C. J. & Holmes, R. W., 1981. The ecological importance of distinguishing between living and dead diatoms in estuarine sediments. — Br. phycol. J.16, 345–349.

    Google Scholar 

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Oppenheim, D.R. Frequency distribution studies of epipelic diatoms along an intertidal shore. Helgolander Meeresunters 41, 139–148 (1987). https://doi.org/10.1007/BF02364696

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