2014
DOI: 10.1093/icesjms/fsu011
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Revisiting the concept of Beverton­­–Holt life-history invariants with the aim of informing data-poor fisheries assessment

Abstract: The complexity and cost of assessment techniques prohibits their application to 90% of fisheries. Simple generic approaches are needed for the world's small-scale and data-poor fisheries. This meta-analysis of the relationship between spawning potential and the normalized size and age of 123 marine species suggests that the so-called Beverton–Holt life-history invariants (BH-LHI; Lm/L∞, M/k, M × Agem) actually vary together in relation to life-history strategy, determining the relationship between size, age, a… Show more

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Cited by 130 publications
(143 citation statements)
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“…The M/k ratio determines the shape of the unfished size composition in populations 353 under equilibrium (Hordyk et al, 2014a, Prince et al, 2014, and the biological parameters 354 for the MSE were based on three species that covered a range of M/k ratios ( History Invariant (BH-LHI) ratio of 1.5 (Jensen, 1996) to those with a much lower M/k of 368 0.36 (Table 1). To ensure that the catch contained a reasonable number of length classes, the 369 selectivity-at-length curve was set lower than maturity-at-length curve for each species, and 370 assumed constant for each species across scenarios.…”
Section: Test Species 352mentioning
confidence: 99%
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“…The M/k ratio determines the shape of the unfished size composition in populations 353 under equilibrium (Hordyk et al, 2014a, Prince et al, 2014, and the biological parameters 354 for the MSE were based on three species that covered a range of M/k ratios ( History Invariant (BH-LHI) ratio of 1.5 (Jensen, 1996) to those with a much lower M/k of 368 0.36 (Table 1). To ensure that the catch contained a reasonable number of length classes, the 369 selectivity-at-length curve was set lower than maturity-at-length curve for each species, and 370 assumed constant for each species across scenarios.…”
Section: Test Species 352mentioning
confidence: 99%
“…The 565 three species used in this MSE had M/k ratios that ranged from M/k=1.5 (Species I Scomber 566 japonicus), a species where unfished stocks are dominated by small sized individuals and 567 large animals are relatively rare, to M/k= 0.36 (Species III Lutjanus erythropterus), where the 568 unfished length composition is expected to be comprised of almost entirely adult sized 569 animals (Hordyk et al, 2014a). These species represent a range of life histories that are 570 common in marine species, although the M/k ratios for a number of species are considerably 571 greater than 1.5 (e.g., up to 3.5; Prince et al, 2014). The species examined in this study were 572 all relatively long-lived (maximum age of 15 -33 years; Table 1).…”
Section: Harvest Strategy Evaluation 549mentioning
confidence: 99%
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