Table 3. Summary table for of the best general additive model describing the growth dynamics of individual copepods over age.

Parametric coefficients	Estimate	Std. Error	t-value	Pr(>|t|)
(Intercept)	0.0035	0.0051	0.70	0.483
Kairomone	0.0043	0.0027	1.63	0.102
Clutch IDD2	−0.0011	0.0057	−0.19	0.851
Clutch IDD3	−0.0056	0.0065	−0.87	0.395
Clutch IDS1	−0.0031	0.0066	−0.48	0.634
Clutch IDS2	−0.0072	0.0057	−1.26	0.209
Clutch IDS3	−0.0013	0.0057	−0.24	0.814
Clutch IDS4	−0.0067	0.0066	−1.01	0.312
Clutch IDS5	−0.0041	0.0054	−0.77	0.444
Clutch IDS6	0.00074	0.0061	0.12	0.904
Copper	0.00065	0.0028	0.23	0.816

Note:

The model formulation was: Growth increment ∼ Kairomone + Clutch ID + Copper + te(age, by = interaction(Kairomone, Clutch ID, Copper), k = 40) + s(age, Well, bs = “fs”, m = 1, k = 40). In the table edf represents the number of effective degrees of freedom and Ref.df the reference number of degrees of freedom used for hypothesis testing.