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Digitale Medien

A new quantitative grab for sampling benthos (1985)

Grizzle, Raymond E. ; Stegner, William E.

Springer

Hydrobiologia 126 (1985), S. 91-95

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Details

ISSN: 1573-5117

Schlagwort(e): grab sampler ; sediment ; benthos

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract A new quantitative grab for sampling benthos is described. It is constructed of stainless steel to retard corrosion, and incorporates six features designed to make it outperform other grabs: 1) a frame support; 2) counter-weighted arms; 3) overlapping buckets; 4) upright posts on the frame for addition of weights; 5) a fine mesh cover on each bucket; and 6) a moving elliptical pivot point. These features result in high reliability compared to other grabs, and a somewhat quadrangular bite profile. The model in use digs to 6 cm depth over the entire area sampled, and penetrates to a maximum of 11.5 cm.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00008392

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