Title: weight composition
Long Title: IUPAC Gold Book - weight composition
DOI: 10.1351/goldbook.15132
Status: current

Definition
Distribution of organisms among the various weight classes present in a population.

Note
The sum of individual weights over all weight classes equals the population biomass.

Related Terms
- population: https://goldbook.iupac.org//terms/view/14932
- population biomass: https://goldbook.iupac.org//terms/view/14933

Source
- PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 963 (https://doi.org/10.1351/PAC-REC-08-07-09)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/15132/html
- json: https://goldbook.iupac.org/terms/view/15132/json
- xml: https://goldbook.iupac.org/terms/view/15132/xml

Citation: Citation: 'weight composition' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.15132
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Accessed: 2026-06-13T22:54:33+00:00