Show simple item record

dc.contributor.authorDemirel, Nazli
dc.contributor.authorKleisner, Kristin M.
dc.contributor.authorFroese, Rainer
dc.contributor.authorCoro, Gianpaolo
dc.date.accessioned2020-08-26T08:18:51Z
dc.date.available2020-08-26T08:18:51Z
dc.date.issued2017
dc.identifier.citationFroese R., Demirel N., Coro G., Kleisner K. M. , Winker H., "Estimating Fisheries Reference Points From Catch And Resilience", Fısh And Fısherıes, Vol.18, Pp.506-526, 2017
dc.identifier.issn1467-2960
dc.identifier.urihttp://hdl.handle.net/20.500.12627/967
dc.description.abstractThis study presents a Monte Carlo method (CMSY) for estimating fisheries reference points from catch, resilience and qualitative stock status information on data-limited stocks. It also presents a Bayesian state-space implementation of the Schaefer production model (BSM), fitted to catch and biomass or catch-per-unit-of-effort (CPUE) data. Special emphasis was given to derive informative priors for productivity, unexploited stock size, catchability and biomass from population dynamics theory. Both models gave good predictions of the maximum intrinsic rate of population increase r, unexploited stock size k and maximum sustainable yield MSY when validated against simulated data with known parameter values. CMSY provided, in addition, reasonable predictions of relative biomass and exploitation rate. Both models were evaluated against 128 real stocks, where estimates of biomass were available from full stock assessments. BSM estimates of r, k and MSY were used as benchmarks for the respective CMSY estimates and were not significantly different in 76% of the stocks. A similar test against 28 data-limited stocks, where CPUE instead of biomass was available, showed that BSM and CMSY estimates of r, k and MSY were not significantly different in 89% of the stocks. Both CMSY and BSM combine the production model with a simple stock-recruitment model, accounting for reduced recruitment at severely depleted stock sizes.
dc.language.isoeng
dc.subjectFısherıes
dc.titleEstimating fisheries reference points from catch and resilience
dc.typearticle
dc.contributor.departmentDeniz Bilimleri ve İşletmeciliği Enstitüsü,-,Fiziksel Oşinografi Ve Deniz Biyolojisi
dc.contributor.authorID0000-0003-4542-9276
dc.identifier.volume18
dc.identifier.startpage506
dc.identifier.endpage526


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record