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Brown Flat Periwinkles: Raw Data Collected from the Sheltered Shore of Angle Point Zone Quadrat number Abundance Running Mean LOWER 1 0 0.000 LOWER 2 0 0.000 LOWER 3 0 0.000 LOWER 4 0 0.000 LOWER 5 0 0.000 LOWER 6 0 0.000 LOWER 7 0 0.000 LOWER 8 0 0.000 LOWER 9 0 0.000 LOWER 10 0 0.000 LOWER 11 0 0.000 LOWER 12 0 0.000 LOWER 13 0 0.000 LOWER 14 0 0.000 LOWER 15 0 0.000 LOWER 16 0 0.000 LOWER 17 0 0.000 LOWER 18 0 0.000 LOWER 19 0 0.000 LOWER 20 0 0.000 LOWER 21 0 0.000 LOWER 22 0 0.000 LOWER 23 0 0.000 LOWER 24 0 0.000 LOWER 25 0 0.000 LOWER 26 0 0.000 LOWER 27 0 0.000 LOWER 28 0 0.000 LOWER 29 0 0.000 LOWER 30 0 0.000 LOWER 31 0 0.000 LOWER 32 0 0.000 LOWER 33 0 0.000 LOWER 34 0 0.000 LOWER 35 0 0.000 LOWER 36 0 0.000 LOWER 37 0 0.000 LOWER 38 0 0.000 LOWER 39 0 0.000 LOWER 40 0 0.000 LOWER 41 LOWER 42 LOWER 43 LOWER 44 LOWER 45 LOWER 46 LOWER 47 LOWER 48 LOWER 49 LOWER 50 Zone Quadrat number Abundance Running Mean Introduction: Aims and Hypothesis The flat periwinkle exists as two distinct species littorina obtusata and littorina mariae, (http:/lineone.net/wildlife/molluscs_flat_periwinlkle.html) both species are common to the sheltered shores of Great Britain and both species can be found in range of different coloured shells (Fish JD and Fish S 1996). The aim of this investigation is to determine if this difference in shell colour will have a significant effect on the distribution of the flat periwinkle on the sheltered shore of Angle point. The distribution and abundance of the flat periwinkle will ultimately be determined by the interactions that the organism experiences between its environment and other organisms. Thus, if changes in shell colour result in the interactions that the flat periwinkle experiences between its biotic and abiotic environment changing, or if...

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