Abstract
Increasingly programmes are being set up to monitor rocky-shore communities in order to provide baseline data which will indicate changes resulting from subsequent pollution. However, these efforts are complicated by several factors. Firstly, there are overall changes in the composition of communities both within and between years. Secondly, there is variation within certain communities due to a mosaic distribution of components, the mosaic format changing continuously with a cycle of several years. This paper reports on studies of a medium-exposed rocky shore in the Isle of Man (U. K.). It describes patterns of spatial and temporal variation, and looks at certain implications for monitoring programmes: (a) the frequency of sampling, and the duration of the sampling programme, in the light of seasonal and long-term variation; (b) the efficiency, in terms of the minimisation of variability, of sampling the same area by different strategies — belt transects, small random quadrats, single large quadrat; (c) the effect of the distribution patterns of some commoner species on the variation between samples.
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Literature Cited
Ballantine, W. J., 1961. A biologically defined exposure scale for the comparative description of rocky shores. — Fld Stud.1 (3), 1–19.
Bowman, R. S., 1978. Dounreay oil spill: major implications of a minor incident. — Mar. Pollut. Bull.9, 269–273.
Burrows, E. M. & Lodge, S. M., 1950. A note on the inter-relationships ofPatella, Balanus andFucus on a semi-exposed coast. — Rep. mar. biol. Stn Port Erin62, 30–34.
Connell, J. H., 1972. Community interactions on marine rocky intertidal shores. — Ann. Rev. Ecol. Syst.3, 169–192.
Dayton, P. K., 1973. Dispersion, dispersal and persistance of the annual intertidal alga,Postelsia palmaeformis Ruprecht. — Ecology54, 433–438.
Elliott, J. M., 1977. Some methods for the statistical analysis of samples of benthic invertebrates. — Scient. Publs Freshwat. biol. Ass.25, 1–160.
Fletcher, A. & Jones, W. E., 1976. The third report of the Coastal Surveillance Unit. December 1976. — University College of North Wales, Bangor, 158 pp.
Jones, W. E., Fletcher, A., Hiscock, K. & Hainsworth, S., 1975. The first report of the Coastal Surveillance Unit. February to July, 1974. University College of North Wales, Bangor, 39 pp.
Jones, W. E., Fletcher, A., Bennell, S., McConnell, B. & Mack Smith, S., 1979a. Changes in littoral populations as recorded by long term shore surveillance. In: Cyclic phenomena in marine plants and animals. Ed. by E. Naylor, R. G. Hartnoll. Pergamon Press, Oxford, 93–100.
Jones, W. E., Fletcher, A., Bennell, S. J., McConnell, B. J., Richards, A. V. L. & Mack Smith, S., 1979b. Intertidal surveillance. — Symp. Inst. Biol.24, 1–23.
Jones, W. E., Bennell, S. J., Beveridge, C. M., Fletcher, A., McConnell, B. J., Mack Smith, S. & Mitchell, J. Methods of data collection and processing in rocky shore intertidal monitoring. In: The shore environment: Methods and ecosystems. Ed. by J. H. Price, D. E. G. Irvine & W. F. Farnham. Systematics Association, London (in press).
Knight, M. & Parke, M., 1950. A biological study ofFucus vesiculosus andFucus serratus. — J. mar. biol. Ass. U. K.29, 439–514.
Lewis, J. R., 1964. The ecology of rocky shores. English Univ. Press, London, 323 pp.
Lewis, J. R., 1976: Long-term ecological surveillance: practical realities in the rocky littoral. — Oceanogr. mar. Biol.14, 371–390.
Lewis, J. R., 1977. The role of physical and biological factors in the distribution and stability of rocky shore communities. In: Biology of benthic organisms. Ed. by B. F. Keegan, P. O. Ceidigh & P. S. J. Boaden. Pergamon Press, Oxford, 417–424.
Menge, B. A., 1976. Organisation of the New England rocky intertidal community: role of predation, competition, and environmental heterogeneity. — Ecol. Monogr.46, 355–393.
Moyse, J. & Nelson-Smith, A., 1963. Zonation of animals and plants on rocky shores around Dale, Pembrokeshire. — Fld Stud.1 (5), 1–31.
Myers, A. A., Cross, T. F. & Southgate, T., 1978. Bantry Bay Survey: First annual report. University College, Cork, 24 pp.
Nelson-Smith, A., 1979. Monitoring the effect of oil pollution on rocky seashores. — Symp. Inst. Biol.24, 25–53.
Sokal, R. R. & Rohlf, F. J., 1969. Biometry. Freeman, San Francisco, 776 pp.
Southward, A. J., 1958. The zonation of plants and animals on rocky sea shores. — Biol. Rev.33, 137–177.
Southward, A. J., 1964. Limpet grazing and the control of vegetation on rocky shores. In: Grazing in terrestrial and marine environments. Ed. by D. J. Crisp. Blackwell, Oxford, 265–273.
Southward, A. J., 1967. Recent changes in abundance of intertidal barnacles in southwest England: a possible effect of climatic deterioration. — J. mar. biol. Ass. U. K.47, 81–95.
Southward, A. J. & Southward, E. C., 1978. Recolonisation of rocky shores in Cornwall after use of toxic dispersants to clean up the Torrey Canyon oil spill. — J. Fish. Res. Bd Can.35, 682–706.
Southward, A. J., Butler, E. I. & Pennycuick, L., 1975. Recent cyclic changes in climate and in abundance of marine life. — Nature, Lond.253, 714–717.
Stephenson, T. A. & Stephenson, A., 1972. Life between tidemarks on rocky shores. Freeman, San Francisco, 425 pp.
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Hartnoll, R.G., Hawkins, S.J. Monitoring rocky-shore communities: a critical look at spatial and temporal variation. Helgolander Meeresunters 33, 484–494 (1980). https://doi.org/10.1007/BF02414773
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DOI: https://doi.org/10.1007/BF02414773