. Author manuscript; available in PMC: 2021 Mar 31.

Published in final edited form as: Environ Toxicol Chem. 2020 Jan;39(1):85–100. doi: 10.1002/etc.4570

Table 4.

Comparison of DOC, hardness, and pH slopes based on averaging of individual species models versus pooled data model. Individual species models and pooled model from Brix et al. (2017).

	Slopes
Species	ln(DOC)	ln(Hardness)	pH	n	Adj. R²
C. dubia	0.625		0.877	87	0.63
D. magna	0.941	0.503	1.042	307	0.86
D. obtusa	0.843	0.233	0.670	53	0.82
D. pulex	0.875	0.406	0.838	35	0.81
P. promelas	0.670	1.030	0.855	206	0.76
Mean slopes	0.791	0.543	0.856	688	0.80
Pooled model slopes	0.786	0.582	0.966	688	0.81