Abstract
Plotting net reproduction (reproductive potential of the adults obtained) against the density of stock which produced them, for a number of fish and invertebrate populations, gives a domed curve whose apex lies above the line representing replacement reproduction. At stock densities beyond the apex, reproduction declines either gradually or abruptly. This decline gives a population a tendency to oscillate in numbers; however, the oscillations are damped, not permanent, unless reproduction decreases quite rapidly and there is not too much mixing of generations in the breeding population. Removal of part of the adult stock reduces the amplitude of oscillations that may be in progress and, up to a point, increases reproduction.
Keywords
ReproductionStock (firearms)PopulationBiologyEcologyFisheryGeographyDemography
Related Publications
Global trends in world fisheries: impacts on marine ecosystems and food security
This contribution, which reviews some broad trends in human history and in the history of fishing, argues that sustainability, however defined, rarely if ever occurred as a resu...
Temporal analysis of archived samples indicates marked genetic changes in declining North Sea cod (<i>Gadus morhua</i>)
Despite increasing evidence that current exploitation rates can contribute to shifts in life-history traits and the collapse of marine fish stocks, few empirical studies have in...
Publication Info
- Year
- 1954
- Type
- article
- Volume
- 11
- Issue
- 5
- Pages
- 559-623
- Citations
- 3118
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
3118
OpenAlex
Cite This
W. E. Ricker
(1954).
Stock and Recruitment.
Journal of the Fisheries Research Board of Canada
, 11
(5)
, 559-623.
https://doi.org/10.1139/f54-039
Identifiers
- DOI
- 10.1139/f54-039