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AN ILLUSTRATION OF THE INFLUENCE OF SUBSTRATUM HETEROGENEITY UPON EXPERIMENTAL RESULTS

โœ Scribed by Harris, J. A.

Book ID
121111855
Publisher
American Association for the Advancement of Science
Year
1913
Tongue
English
Weight
154 KB
Volume
38
Category
Article
ISSN
0036-8075

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## Abstract In order to determine the efficacy of sampling benthic invertebrates to a depth of 100 mm as compared with 200 mm, the gravel substratum of an experimental recirculating stream was sampled to both depths. Except for 6 taxa which were significantly more numerous in the shallower samplers