abundance

https://doi.org/10.1351/goldbook.14415
  1. Total number of individual organisms in a population, seen over a defined period of time in a certain place.
    Note: For fish, an estimate of total weight may replace number.
  2. Total number of organisms per unit of habitat space seen over a defined period.
  3. Amount of an element that exists in nature, usually expressed in relative terms as a percentage of the total amount of all elements in a given medium (e.g., the Earth’s crust).
  4. Amount of an isotope of an element that exists in nature, usually expressed in relative terms as a percentage of the total amount of all isotopes of the element.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 833 [Terms] [Paper]
Citation: 'abundance' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.14415 RIS BibTex EndNote
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