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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