On the reliability of Ponar grab samples
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L. Int Panis; B. Goddeeris; R. F. Verheyen
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Article
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1995
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Springer
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English
β 370 KB
We present observations on the variability of sediment penetration depth by the Ponar grab sampler, which lead us to question the reliability of grab samples in the quantitative study of freshwater benthos . Penetration depth of the Petite Ponar grab depends on substrate type, and correlates with th