Revisiting Beverton–Holt recruitment in the presence of variation in food availability

Revisiting Beverton–Holt recruitment in the presence of variation in food availability Rev Fish Biol Fisheries https://doi.org/10.1007/s11160-018-9521-6 RESEARCH PAPER Revisiting Beverton–Holt recruitment in the presence of variation in food availability . . Brett van Poorten Josh Korman Carl Walters Received: 13 October 2017 / Accepted: 26 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Understanding density-dependent changes when food availability is known to vary over time, in juvenile survival and growth rates is of great these models often result in a more parsimonious importance because these rates determine recovery alternative than the standard Beverton–Holt function. rates for imperiled populations and/or sustainable Further, Beverton–Holt recruitment is expected when harvest rates. Unfortunately, the mechanisms leading foraging times are adjusted to balance fitness gains to density dependent survival and growth are among from growth against mortality risk. Finally, linking the least understood process in biology and fisheries. recruitment success to food availability warns that Previous work has shown that small fish may vary species with high scope for density dependent survival foraging times to achieve a target growth rate, (high compensation ratio or steepness) may be resulting in the well-known Beverton–Holt recruit- extremely sensitive to changes in available food ment function with variation in food availability densities. This work emphasizes http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Revisiting Beverton–Holt recruitment in the presence of variation in food availability

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Life Sciences; Freshwater & Marine Ecology; Zoology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-018-9521-6
Publisher site
See Article on Publisher Site

Abstract

Rev Fish Biol Fisheries https://doi.org/10.1007/s11160-018-9521-6 RESEARCH PAPER Revisiting Beverton–Holt recruitment in the presence of variation in food availability . . Brett van Poorten Josh Korman Carl Walters Received: 13 October 2017 / Accepted: 26 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Understanding density-dependent changes when food availability is known to vary over time, in juvenile survival and growth rates is of great these models often result in a more parsimonious importance because these rates determine recovery alternative than the standard Beverton–Holt function. rates for imperiled populations and/or sustainable Further, Beverton–Holt recruitment is expected when harvest rates. Unfortunately, the mechanisms leading foraging times are adjusted to balance fitness gains to density dependent survival and growth are among from growth against mortality risk. Finally, linking the least understood process in biology and fisheries. recruitment success to food availability warns that Previous work has shown that small fish may vary species with high scope for density dependent survival foraging times to achieve a target growth rate, (high compensation ratio or steepness) may be resulting in the well-known Beverton–Holt recruit- extremely sensitive to changes in available food ment function with variation in food availability densities. This work emphasizes

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Jun 2, 2018

References

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