Transchem project - Part II: Transgenerational effects of long-term exposure to pendimethalin at environmental concentrations on the early development and viral pathogen susceptibility of rainbow trout (Oncorhynchus mykiss).

•Transgenerational exposure to pendimethalin impacted the macroscopic development.•The pathogen susceptibility of offspring varied according to the viral challenge and the chemical exposure conditions.•With IHNV, the contaminated genitors’ offspring died in a larger proportion compared to control.•With SDV, the contaminated genitors’ offspring showed delayed mortality and higher seroconversion rate than control.