Skip to main content
. 2009 Sep 22;19(2):351–361. doi: 10.1007/s10646-009-0417-z

Table 1.

Choice of DEB parameters for ecotoxicity purposes, defaults for Daphnia magna (Kooijman et al. 2008), and fits on controls with likelihood-based confidence intervals

Symbol Description Defaults Daphnia Fits (95% CI)
g Energy investment ratio 0.422 [–] n.e.
v Energy conductance 3.24 mm d−1 1.96 (1.7–2.2) mm d−1
k M Somatic maintenance rate coefficient 1.71 d−1 1.51 (1.3–1.8) d−1
k Ratio of maturity and somatic maintenance rate coefficient 1 [–] n.e.
κ Allocation fraction to soma 0.80 [–] 0.551 (0.40–0.67) [–]
κ R Reproduction efficiency 0.95 [–] n.e.
U pH Scaled maturity at puberty 0.366 mm2 d 0.966 (0.61–1.4) mm2 d
U bH/U pH Maturity at birth, relative to puberty 0.0328 [–] n.e.
f Scaled ingestion rate 1 [–] n.e.

n.e. not estimated