condition index

https://doi.org/10.1351/goldbook.14546
Any quantitative measure of the condition in relation to a defined baseline.
Note: In mussels, various shell indexes (volume/length, mass/length), glycogen concentration (w/bw), or relative organ mass are used.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 860 [Terms] [Paper]