The sensitivity of long-term yield targets to changes in fishery age-selectivity. Scott, R. D. & Sampson, D. B. MARINE POLICY, 35(1):79-84, ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, JAN, 2011.
doi  abstract   bibtex   
Maximum sustainable yield (MSY) has been adopted as the primary management goal by several inter-government fishery organisations, and in the United States it forms the cornerstone of federal fishery management policy. MSY became a strategic goal for the management of Europe's fisheries following the resolution of the World Summit on Sustainable Development in 2002 to restore or maintain fish stocks to MSY levels by 2015. Calculation of MSY requires information on the rate at which biomass increases through growth and reproduction and the rate at which it decreases through natural mortality and fishing. Population-selection, which measures the age-specific rates of fishing mortality, is a key component for the calculation of yield as a function of fishing mortality and MSY, yet selection rarely features in either management advice or sensitivity analyses. Effective management of selection can potentially lead to increases in long-term yield, but before taking action managers need to understand what long-term increases are possible. Using a hypothetical stock, equilibrium yield curves were calculated for three scenarios in which the shape of the population-selection curve varied. The results illustrate the potential extent of variation in MSY and the corresponding fishing mortality required to achieve it (F(MSY)) that may result solely due to changes in population selectivity. They show that relatively subtle changes in selection can produce substantial differences in MSY and F(MSY). The results are discussed with specific reference to the development of long-term management targets and the mechanisms by which managers might try to influence population-selection. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.
@article{ ISI:000283619600010,
Author = {Scott, Robert D. and Sampson, David B.},
Title = {{The sensitivity of long-term yield targets to changes in fishery
   age-selectivity}},
Journal = {{MARINE POLICY}},
Year = {{2011}},
Volume = {{35}},
Number = {{1}},
Pages = {{79-84}},
Month = {{JAN}},
Abstract = {{Maximum sustainable yield (MSY) has been adopted as the primary
   management goal by several inter-government fishery organisations, and
   in the United States it forms the cornerstone of federal fishery
   management policy. MSY became a strategic goal for the management of
   Europe's fisheries following the resolution of the World Summit on
   Sustainable Development in 2002 to restore or maintain fish stocks to
   MSY levels by 2015. Calculation of MSY requires information on the rate
   at which biomass increases through growth and reproduction and the rate
   at which it decreases through natural mortality and fishing.
   Population-selection, which measures the age-specific rates of fishing
   mortality, is a key component for the calculation of yield as a function
   of fishing mortality and MSY, yet selection rarely features in either
   management advice or sensitivity analyses. Effective management of
   selection can potentially lead to increases in long-term yield, but
   before taking action managers need to understand what long-term
   increases are possible. Using a hypothetical stock, equilibrium yield
   curves were calculated for three scenarios in which the shape of the
   population-selection curve varied. The results illustrate the potential
   extent of variation in MSY and the corresponding fishing mortality
   required to achieve it (F(MSY)) that may result solely due to changes in
   population selectivity. They show that relatively subtle changes in
   selection can produce substantial differences in MSY and F(MSY). The
   results are discussed with specific reference to the development of
   long-term management targets and the mechanisms by which managers might
   try to influence population-selection. Crown Copyright (C) 2010
   Published by Elsevier Ltd. All rights reserved.}},
Publisher = {{ELSEVIER SCI LTD}},
Address = {{THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Scott, RD (Reprint Author), IPSC Maritime Affairs Unit, Joint Res Ctr, European Commiss, TP051,Via E Fermi 2749, I-21027 Ispra, VA, Italy.
   Scott, Robert D.; Sampson, David B., IPSC Maritime Affairs Unit, Joint Res Ctr, European Commiss, I-21027 Ispra, VA, Italy.
   Scott, Robert D., Ctr Environm Fisheries \& Aquaculture Sci, Lowestoft NR33 0HT, Suffolk, England.
   Sampson, David B., Oregon State Univ, Coastal Oregon Marine Expt Stn, Newport, OR 97365 USA.
   Sampson, David B., Oregon State Univ, Hatfield Marine Sci Ctr, Dept Fisheries \& Wildlife, Newport, OR 97365 USA.}},
DOI = {{10.1016/j.marpol.2010.08.005}},
ISSN = {{0308-597X}},
Keywords = {{Fishery selection; MSY; Reference points; Population dynamics;
   Selectivity; Long-term management}},
Keywords-Plus = {{MAXIMUM SUSTAINABLE-YIELD; MANAGEMENT STRATEGIES; REFERENCE POINTS;
   GEARS; MSY}},
Research-Areas = {{Environmental Sciences \& Ecology; International Relations}},
Web-of-Science-Categories  = {{Environmental Studies; International Relations}},
Author-Email = {{robert.scott@jrc.ec.europa.eu}},
ResearcherID-Numbers = {{Scott, Robert/B-8365-2013}},
Number-of-Cited-References = {{25}},
Times-Cited = {{19}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{12}},
Journal-ISO = {{Mar. Pol.}},
Doc-Delivery-Number = {{672XF}},
Unique-ID = {{ISI:000283619600010}},
OA = {{No}},
DA = {{2017-08-17}},
}
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