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www.hallsannery.co.uk
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Dogwhelk example: |
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Ecoprojects example: Results: 30 Dogwhelks were selected using a 0.5m x 0.5m quadrat placed by random walking in the mid to lower shore (boundary of F.serratus and F.vesiculosus) area of two shores of different wave exposure. The shell length, shell width and aperture length were measured using calipers and the shell thickness measured at the mid -point of the aperture using a micrometer Summary results Calculate ratios, means, standard deviation and standard error for each sample
Summary statistics should then be displayed as bar charts with error bars. e.g. shell length
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Last modified: June 08, 2003 |