SpawnerPerRecruit: Spawner per recruit (SPR)
In nmfs-fish-tools/data_dictionary: Collaborative tool to improve consistency in terminology and develop a framework of tools for fisheries science.
SpawnerPerRecruit R Documentation
Spawner per recruit (SPR)
Description
The ratio of the amount of spawning biomass produced by a cohort over its
lifespan under a specific fishing regime relative to the spawning biomass
produced over the cohort's lifespan under no fishing. The numerator will
always be smaller than the denominator because of mortality from fishing.
Only information about the life history and fishing is needed for the
calculation, whereas other reference points may need information about
recruitment, making it a common proxy for reference points based on maximum
sustainable yield.
Usage
SpawnerPerRecruit
Format
- Examples
SPR30%
- Rationale
Spawner per recruit and spawning potential ratio have the
same acronym of SPR.
- Alternatives
30%SPR
- Range of possible values
0–1
- Units
nmfs-fish-tools/data_dictionary documentation built on July 27, 2024, 12:20 p.m.
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| SpawnerPerRecruit | R Documentation |
Spawner per recruit (SPR)
Description
The ratio of the amount of spawning biomass produced by a cohort over its lifespan under a specific fishing regime relative to the spawning biomass produced over the cohort's lifespan under no fishing. The numerator will always be smaller than the denominator because of mortality from fishing. Only information about the life history and fishing is needed for the calculation, whereas other reference points may need information about recruitment, making it a common proxy for reference points based on maximum sustainable yield.
Usage
SpawnerPerRecruit
Format
- Examples
SPR30%
- Rationale
Spawner per recruit and spawning potential ratio have the same acronym of SPR.
- Alternatives
30%SPR
- Range of possible values
0–1
- Units
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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