Fishing for MSY: using “pretty good yield” ranges without impairing recruitment

Anna Rindorf, Massimiliano Cardinale, Samuel Shephard, José A. A. De Oliveira, Einar Hjorleifsson, Alexander Kempf, Anna Luzenczyk, Colin Millar, David C. M. Miller, Coby L. Needle, John Simmonds, Morten Vinther

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Abstract

Pretty good yield (PGY) is a sustainable fish yield corresponding to obtaining no less than a specified large percentage of the maximum sustainable
yield (MSY). We investigated 19 European fish stocks to test the hypothesis that the 95% PGY yield range is inherently precautionary
with respect to impairing recruitment. An FMSY range was calculated for each stock as the range of fishing mortalities (F) that lead to an average
catch of at least 95% of MSY in long-term simulations. Further, a precautionary reference point for each stock (FP.05) was defined as the
F resulting in a 5% probability of the spawning-stock biomass falling below an agreed biomass limit below which recruitment is impaired
(Blim) in long-term simulations. For the majority of the stocks analysed, the upper bound of the FMSY range exceeded the estimated FP.05.
However, larger fish species had higher precautionary limits to fishing mortality, and species with larger asymptotic length were less likely to
have FMSY ranges impairing recruitment. Our study shows that fishing at FMSY generally is precautionary with respect to impairing recruitment
for highly exploited teleost species in northern European waters, whereas the upper part of the range providing 95% of MSY is not necessarily
precautionary for small- and medium-sized teleosts.
Original languageEnglish
JournalICES Journal of Marine Science
Volume74
Issue number2
Pages (from-to)525-534
ISSN1054-3139
DOIs
Publication statusPublished - 2017

Cite this

Rindorf, Anna ; Cardinale, Massimiliano ; Shephard, Samuel ; De Oliveira, José A. A. ; Hjorleifsson, Einar ; Kempf, Alexander ; Luzenczyk, Anna ; Millar, Colin ; Miller, David C. M. ; Needle, Coby L. ; Simmonds, John ; Vinther, Morten. / Fishing for MSY: using “pretty good yield” ranges without impairing recruitment. In: ICES Journal of Marine Science. 2017 ; Vol. 74, No. 2. pp. 525-534.
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title = "Fishing for MSY: using “pretty good yield” ranges without impairing recruitment",
abstract = "Pretty good yield (PGY) is a sustainable fish yield corresponding to obtaining no less than a specified large percentage of the maximum sustainableyield (MSY). We investigated 19 European fish stocks to test the hypothesis that the 95{\%} PGY yield range is inherently precautionarywith respect to impairing recruitment. An FMSY range was calculated for each stock as the range of fishing mortalities (F) that lead to an averagecatch of at least 95{\%} of MSY in long-term simulations. Further, a precautionary reference point for each stock (FP.05) was defined as theF resulting in a 5{\%} probability of the spawning-stock biomass falling below an agreed biomass limit below which recruitment is impaired(Blim) in long-term simulations. For the majority of the stocks analysed, the upper bound of the FMSY range exceeded the estimated FP.05.However, larger fish species had higher precautionary limits to fishing mortality, and species with larger asymptotic length were less likely tohave FMSY ranges impairing recruitment. Our study shows that fishing at FMSY generally is precautionary with respect to impairing recruitmentfor highly exploited teleost species in northern European waters, whereas the upper part of the range providing 95{\%} of MSY is not necessarilyprecautionary for small- and medium-sized teleosts.",
author = "Anna Rindorf and Massimiliano Cardinale and Samuel Shephard and {De Oliveira}, {Jos{\'e} A. A.} and Einar Hjorleifsson and Alexander Kempf and Anna Luzenczyk and Colin Millar and Miller, {David C. M.} and Needle, {Coby L.} and John Simmonds and Morten Vinther",
year = "2017",
doi = "10.1093/icesjms/fsw111",
language = "English",
volume = "74",
pages = "525--534",
journal = "I C E S Journal of Marine Science",
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}

Rindorf, A, Cardinale, M, Shephard, S, De Oliveira, JAA, Hjorleifsson, E, Kempf, A, Luzenczyk, A, Millar, C, Miller, DCM, Needle, CL, Simmonds, J & Vinther, M 2017, 'Fishing for MSY: using “pretty good yield” ranges without impairing recruitment', ICES Journal of Marine Science, vol. 74, no. 2, pp. 525-534. https://doi.org/10.1093/icesjms/fsw111

Fishing for MSY: using “pretty good yield” ranges without impairing recruitment. / Rindorf, Anna; Cardinale, Massimiliano; Shephard, Samuel; De Oliveira, José A. A.; Hjorleifsson, Einar; Kempf, Alexander; Luzenczyk, Anna; Millar, Colin; Miller, David C. M.; Needle, Coby L.; Simmonds, John; Vinther, Morten.

In: ICES Journal of Marine Science, Vol. 74, No. 2, 2017, p. 525-534.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Fishing for MSY: using “pretty good yield” ranges without impairing recruitment

AU - Rindorf, Anna

AU - Cardinale, Massimiliano

AU - Shephard, Samuel

AU - De Oliveira, José A. A.

AU - Hjorleifsson, Einar

AU - Kempf, Alexander

AU - Luzenczyk, Anna

AU - Millar, Colin

AU - Miller, David C. M.

AU - Needle, Coby L.

AU - Simmonds, John

AU - Vinther, Morten

PY - 2017

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N2 - Pretty good yield (PGY) is a sustainable fish yield corresponding to obtaining no less than a specified large percentage of the maximum sustainableyield (MSY). We investigated 19 European fish stocks to test the hypothesis that the 95% PGY yield range is inherently precautionarywith respect to impairing recruitment. An FMSY range was calculated for each stock as the range of fishing mortalities (F) that lead to an averagecatch of at least 95% of MSY in long-term simulations. Further, a precautionary reference point for each stock (FP.05) was defined as theF resulting in a 5% probability of the spawning-stock biomass falling below an agreed biomass limit below which recruitment is impaired(Blim) in long-term simulations. For the majority of the stocks analysed, the upper bound of the FMSY range exceeded the estimated FP.05.However, larger fish species had higher precautionary limits to fishing mortality, and species with larger asymptotic length were less likely tohave FMSY ranges impairing recruitment. Our study shows that fishing at FMSY generally is precautionary with respect to impairing recruitmentfor highly exploited teleost species in northern European waters, whereas the upper part of the range providing 95% of MSY is not necessarilyprecautionary for small- and medium-sized teleosts.

AB - Pretty good yield (PGY) is a sustainable fish yield corresponding to obtaining no less than a specified large percentage of the maximum sustainableyield (MSY). We investigated 19 European fish stocks to test the hypothesis that the 95% PGY yield range is inherently precautionarywith respect to impairing recruitment. An FMSY range was calculated for each stock as the range of fishing mortalities (F) that lead to an averagecatch of at least 95% of MSY in long-term simulations. Further, a precautionary reference point for each stock (FP.05) was defined as theF resulting in a 5% probability of the spawning-stock biomass falling below an agreed biomass limit below which recruitment is impaired(Blim) in long-term simulations. For the majority of the stocks analysed, the upper bound of the FMSY range exceeded the estimated FP.05.However, larger fish species had higher precautionary limits to fishing mortality, and species with larger asymptotic length were less likely tohave FMSY ranges impairing recruitment. Our study shows that fishing at FMSY generally is precautionary with respect to impairing recruitmentfor highly exploited teleost species in northern European waters, whereas the upper part of the range providing 95% of MSY is not necessarilyprecautionary for small- and medium-sized teleosts.

U2 - 10.1093/icesjms/fsw111

DO - 10.1093/icesjms/fsw111

M3 - Journal article

VL - 74

SP - 525

EP - 534

JO - I C E S Journal of Marine Science

JF - I C E S Journal of Marine Science

SN - 1054-3139

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ER -