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Table 1 Parameters derived from DEBtox model fits of time series life-history trait data

From: Linking toxicant physiological mode of action with induced gene expression changes in Caenorhabditis elegans

Cadmium

Fluoranthene

Atrazine

Physiological

Von Bertalanffy growth rate (d-1)

0.878

1.05

1.27

Initial length (μm)

17.7

24.1

32.4

Length at which ingestion is half of maximum (μm)

30.7

37.4

45.7

Length at start of reproduction (μm)

71.6

86.8

87.0

Maximum length (μm)

132

134

135

Maximum reproduction rate (eggs/d)

130

189

196

Ageing

   

Maximum total number of eggs

146

152

178

damage killing rate (d-1)

0.00701

0.00504

0.00580

Damage amplification (d-1)

0.196

0.166

0.154

Toxicological

   

Mode of action

Assimilation

Costs for growth and reproduction

Maintenance

elimination rate (d-1)

0.0811

12.6

1.27

Half-saturation conc. for uptake (mg/L)

27.8

n.e.

63.2

NEC for survival (mg/L)

6.57

n.e.

222

killing rate (L/mg/d)

0.118

n.e.

0.0897

NEC for effects on growth/repro (mg/L)

0.000134

0.000834

13.4

Tolerance concentration (mg/L)

7.53

4320

234

Decrease length at puberty due to chemical stress [-]

0.656

0.240

0.540

Decrease total eggs due to chemical stress [-]

3.68

1.46

14.5