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The relationship between body length parameters and dry mass in running water invertebrates

Archiv fuer Hydrobiologie 117(2): 191-204

The relationship between body length parameters and dry mass in running water invertebrates

Length-dry mass relationships and mean dry mass values for Central European stream-dwelling invertebrates are given to enable calculation of benthic biomass. Length-dry mass relationships can be described by the power equation y = a .cntdot. xb or a quadratic regression model y = a + bx + cx2. Correlation between length parameters, i.e. between head capsule width and body length, is either linear (y = ax + b) or follows a quadratic regression model, too. Average dry mass values are provided for several taxa for which body size measurements often are not carried out in quantitative studies, e.g. Hydrozoa, Nemathelminthes, Oiligochaeta, Hydracarina and pupae of Trichoptera and Diptera.

Accession: 001982961

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