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Mortality rate | instantaneous mortality rate

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2023-10-28 00:00:00

1. Synonyms, etymology, translation, definition, examples and notes

1.1. Subject field:

Fisheries management. (🏛 Hierarchy: Fisheries > Fisheries management )

1.2. Synonyms of mortality rate:

1 international synonym(s) for mortality rate. Notably:

Instantaneous mortality rate 🔉 ▶

1.3. 🇫🇷 French translation of mortality rate and instantaneous mortality rate:

Taux (instantané) de mortalité

1.4. Definition of mortality rate in fisheries:

Mortality rate, also known as instantaneous mortality rate, is defined as: 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.