sentinel species

https://doi.org/10.1351/goldbook.15028
Feral, caged, or endemic species used in measuring and indicating the level of contamination or effect during a biomonitoring exercise.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 944 [Terms] [Paper]