Terminology record for abundance index
RECORD
| Record No.: | 14/en/23 |
| Author: | ELAD D. F. |
| Creation date: | |
| Last updated: | 0000-00-00 00:00:00 |
| 🇫🇷 FRENCH | ||||
| DOMAINE |
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| VEDETTE | * Indice d'abondance statut : recommandé
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| PARTIE DU DISCOURS | nom féminin | |||
| ÉTYMOLOGIE | Indice d'abondance | |||
| DÉFINITION |
Une mesure quantitative de la densité ou de l'abondance des poissons, généralement sous forme de série chronologique. Il s'agit d'une mesure relative de la taille d'une population ou d'une sous-unité de la population, telle qu'une classe d'âge. Elle est généralement mesurée en nombre (ou en poids) de poissons capturés par unité standard d'effort de pêche. | |||
| PLURIEL | Indices d'abondance ; | |||
| SOURCE DE DÉFINITION | Fishterm | |||
| 🇬🇧 ENGLISH | ||||
| SUBJECT FIELD |
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| TERM | * Abundance Index status: recommended
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| PART OF SPEECH | noun | |||
| PLURAL | Abundance Indices ; | |||
| DEFINITION |
A quantitative measure of fish density or abundance, usually as a time series. It is a relative measure of the size of a population or sub-unit of the population, such as a year class. It is usually measured as number (or weight) of fish caught per standard unit of fishing effort. | |||
| DEFINITION SOURCE |
SCRS (2001) | |||
| Notes |
An abundance index can
be specific to an area or to a segment of the population
(e.g., large fish), or it can refer to abundance stock-wide;
the index can reflect abundance in numbers or in weight
(biomass). Most abundance indices currently used by
the SCRS are based on standardized CPUE data, although fishery-independent abundance indices based on
scientific surveys have also been used. Typically, abundance indices are in relative units (as opposed to measuring absolute abundance), and simply
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