Dj. Towers et al., PREDICTING DRY-WEIGHT OF NEW-ZEALAND AQUATIC MACROINVERTEBRATES FROM LINEAR DIMENSIONS, New Zealand Journal of Marine and Freshwater Research, 28(2), 1994, pp. 159-166
Regression equations are presented for the estimation of dry weight fr
om head width and body length for 20 common New Zealand stream-dwellin
g macroinvertebrate taxa. Equations for taxa grouped at order level ar
e also provided. A power equation, y = a x(b) is used to express the r
elationship between dry weight and body size. For the majority of taxa
, dry weight could be estimated with more precision from body length t
han from head width.