critical life-stage testing

https://doi.org/10.1351/goldbook.14559
Toxicity testing focused on the species life stage thought to be the most sensitive to the toxicant, such as newly hatched individuals.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 863 [Terms] [Paper]