Fiche terminologique pour :taux (instantané) de mortalité
RECORD
| Numéro de la fiche : | 326/fr/606 |
| Auteur : | ELAD D. F. |
| Date de création : | |
| Dernière mise à jour : | 2023-10-28 00:00:00 |
| 🇬🇧 ANGLAIS | ||||
| SUBJECT FIELD |
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| TERM | * Mortality rate status: recommended
* Instantaneous mortality rate (noun) status: accepted | |||
| PART OF SPEECH | noun | |||
| ETYMOLOGY | Mortality rate | |||
| DEFINITION |
Conceptually, the easiest way to describe mortality is as a fraction (e.g. 0.3 or 30% of the fish die in a year). Because fishing and natural mortality happen continuously throughout the year, it is not straightforward to use these fractions in an additive way. Expressing these processes as instantaneous rates (i.e. as the fractions that die in infinitesimal periods of time) facilitates the stock assessment analysis computations on an annual basis, even when the catches take place daily. Instantaneous mortality rates of 0.1, 0.5 and 1.0 are equivalent to 10%, 39% and 63% mortality.
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| DEFINITION SOURCE | Fishterm | |||
| 🇫🇷 FRANÇAIS | ||||
| DOMAINE |
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| VEDETTE | * Taux (instantané) de mortalité statut : recommandé
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| PARTIE DU DISCOURS | nom masculin | |||
| DÉFINITION |
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| SOURCE DE DÉFINITION | Fishterm | |||
