Page 189 - Freshwater-Biology-and-Ecology-Handbook
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A range of sampling devices are also described in the British and European standard
                           BS ISO 10870:2012 (British Standards Institution, 2012).  (58)
                           Green (1979) provides sound advice about designing ecological investigations and the
                           endpapers provide a useful checklist, including the ‘Ten Principles’, shown in Figure 4.4,
                           which remain current today.  (59)





































































                                                                                       Figure 4.4
                           Ten Principles, from the front endpaper of Green (1979), described in detail in the main text of that book









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