Fig. 4. Smoothers for partial effects of explanatory variables on total number of corpora albicantia in ovaries of BIOCET P. phocoena, for models which include age and blubber thickness (plus regional variation in the first model): partial effects of concentrations of (A) ∑16PCB congeners (n = 59), (B) HBCD isomers (n = 36), and (C) DDE (n = 59). |