Table 2.

Evaluation of parameters of logistic sigmoid model of copper toxicity in aquatic biota.

Toxicity		Symbol	Endpoint/stage/taxa	Log C			SF (4)	Radj(%) (5)	CV (%)			Model & Data Fitness		∑ *	Selected response
				Log C50(1)	∆ Log C (2)	Ø (3)			k (6)	a (7)	log C.q (8)	ꭕ2(9)	R2(10)
Lethal	Lethal Toxicity	P	Parasite	2.765	1.634	0.84	0.4	50	12	7	2	37	0.956	-	-
	Lethal Toxicity – Life Stage (S)	S−3	Adult	2.671	0.323 *	0.73	18.6	37	14	3 *	0 *	12	0.986	3	Fry (4*) > Fingerling (3*) > Adult (3*)
		S−2	Fingerling	2.563	1.920	0.75	11.0	59	8 *	4	1	7 *	0.992 *	3
		S−1	Fry	2.215 *	0.987	0.82 *	4.4 *	74 *	47	28	5	32	0.963	4
	Lethal Toxicity – Taxonomic (T)	T−3	Cichliformes	3.022	2.458	1.01 *	1.5 *	51	11	9	3	12	0.987	3	Cypriniformes (5*) > Salmoniformes (3*) Cichliformes (2*) >
		T−2	Cypriniformes	2.481	2.038	0.82	9.3	56	4 *	2 *	1 *	10 *	0.988 *	5
		T−1	Salmoniformes	2.013*	0.987*	0.78	3.2	80 *	18	10	2	55	0.942	2
Sub-lethal	Growth Toxicity (G)	G−3	AST (recovery) Gills	2.887	1.273	1.13	4.3	0.1	76	15 *	3 *	176	0.888 *	3	TBARS liver (6*) > Gills AST (3*) > Gills ALT (1*)
		G−2	ALT (treatment) Gills	2.663	1.162	1.01	3.8	0.2	77	23	4	110 *	0.841	1
		G−1	TBARS-Liver	1.393 *	0.443 *	1.02 *	1.7 *	7 *	49 *	16	4	159	0.885	6
	Behavioral Toxicity (B)	B−3	Acetylcholinesterase	1.539	1.500	0.63	6.1	1	40	7	7	117	0.919	0	Abnormal behavior (6*) > Velocity (4*) > Acetylcholinesterase (0*)
		B−2	Abnormal Behavior	0.696	0.647	0.98 *	2.1	33	6 *	1 *	1 *	2 *	0.999 *	6
		B−1	Velocity	0.585 *	0.445 *	1.17	1.7 *	41 *	70	60	22	89	0.939	4
	Olfactory Toxicity (O)	O−3	Cell Count in Myoseptum	1.591	3.287	0.54	74.9	23	30 *	8 *	8	60	0.941	2	Motor neuron (7*) > Cell count in myoseptum (2*) > Mean hair cells (1*)
		O−2	Mean Hair Cells	1.289	2.422	0.14	67.6	36	44	33	7 *	46	0.967	1
		O−1	Motor Neuron	0.557 *	2.369 *	0.62 *	18.7 *	43 *	58	48	38	16 *	0.978 *	7

All symbols are explained in the equations in the text.

The CRR with the largest number of fulfilled criteria (*) was determined as the selected effect among the three CRRs in each group.

The criteria symbol (*) is given to the lowest value of each criterion, except for criteria five and 10 (to the highest value).