Original paper
Regression analysis of linear body dimensions vs. dry mass in stream macroinvertebrates
Burgherr, Peter; Meyer, Elisabeth I.
Archiv für Hydrobiologie Volume 139 Number 1 (1997), p. 101 - 112
22 references
published: Apr 15, 1997
DOI: 10.1127/archiv-hydrobiol/139/1997/101
ArtNo. ESP141013901006, Price: 29.00 €
Abstract
The regression equations for predicting dry mass from linear body dimensions presented in this study allow to calculate biomass of benthic macroinvertebrates from mountain streams of Central Europe. For the description of length-dry mass relationships, the power function y = a · xb or in a few cases the quadratic function y = a + b · x + c · x2 proved to be the best models. The relationships between linear body dimensions - e.g. body length (BL) vs. head capsule width (HW) - followed a simple linear model of the type y = a · x + b or again a quadratic one. Data of literature imply that the relationships derived from this study should be restricted to carbonate streams.
Keywords
regression • dry mass • biomass • macroinvertebrates • carbonate