Stock and recruitment in North Sea herring (Clupea harengus); compensation and depensation in the population dynamics. Nash, R. D. M., Dickey-Collas, M., & Kell, L. T. FISHERIES RESEARCH, 95(1):88-97, ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, JAN 1, 2009. doi abstract bibtex 1 download The recovery of a stock after severe exploitation is of major interest to fish ecologists and managers alike. Understanding the dynamics of recruitment at low stock sizes is crucial to the simulation of stocks as they recover. Compensation in recruitment has occurred in North Sea herring, and it was stronger after the collapse of the stock. The compensation appears to be a product of both increased production of larvae per spawner and increased survival to the juvenile stage. There is only slight evidence for depensation and the point at which North Sea herring has zero recruitment appears close to the origin. There is more variability in recruits per unit spawning stock size when the stock is smaller, this is probably as a result of the potential larger diversity in contributions from spawning components in an unexploited stock compared to an overexploited stock. Mimicking this dynamic in population models will increase the uncertainties in a projection of stock recovery. The lack of observations at higher stock sizes hinders our ability to compare the dynamics of recruit to SSB across the full range of stock sizes, however, recent apparent over-compensation at higher spawning biomass has resulted in less than one recruit per mature adult being produced per year. (C) 2008 Elsevier B.V. All rights reserved.
@article{ ISI:000262206900010,
Author = {Nash, Richard D. M. and Dickey-Collas, Mark and Kell, Laurence T.},
Title = {{Stock and recruitment in North Sea herring (Clupea harengus);
compensation and depensation in the population dynamics}},
Journal = {{FISHERIES RESEARCH}},
Year = {{2009}},
Volume = {{95}},
Number = {{1}},
Pages = {{88-97}},
Month = {{JAN 1}},
Abstract = {{The recovery of a stock after severe exploitation is of major interest
to fish ecologists and managers alike. Understanding the dynamics of
recruitment at low stock sizes is crucial to the simulation of stocks as
they recover. Compensation in recruitment has occurred in North Sea
herring, and it was stronger after the collapse of the stock. The
compensation appears to be a product of both increased production of
larvae per spawner and increased survival to the juvenile stage. There
is only slight evidence for depensation and the point at which North Sea
herring has zero recruitment appears close to the origin. There is more
variability in recruits per unit spawning stock size when the stock is
smaller, this is probably as a result of the potential larger diversity
in contributions from spawning components in an unexploited stock
compared to an overexploited stock. Mimicking this dynamic in population
models will increase the uncertainties in a projection of stock
recovery. The lack of observations at higher stock sizes hinders our
ability to compare the dynamics of recruit to SSB across the full range
of stock sizes, however, recent apparent over-compensation at higher
spawning biomass has resulted in less than one recruit per mature adult
being produced per year. (C) 2008 Elsevier B.V. All rights reserved.}},
Publisher = {{ELSEVIER SCIENCE BV}},
Address = {{PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Nash, RDM (Reprint Author), Inst Marine Res, POB 1870 Nordnes, N-5817 Bergen, Norway.
Nash, Richard D. M., Inst Marine Res, N-5817 Bergen, Norway.
Dickey-Collas, Mark, Wageningen Inst Marine Resources \& Ecosyst Studie, NL-1970 AB Ijmuiden, Netherlands.
Kell, Laurence T., Ctr Environm Fisheries \& Aquaculture Sci Cefas, Lowestoft NR33 0HT, Suffolk, England.}},
DOI = {{10.1016/j.fishres.2008.08.003}},
ISSN = {{0165-7836}},
Keywords = {{Herring; Life-history; Recovery; North Sea; North-east Atlantic}},
Keywords-Plus = {{COD GADUS-MORHUA; PELAGIC FISHERIES; FISH STOCKS; ATLANTIC; MANAGEMENT;
GROWTH; ENVIRONMENT; FECUNDITY; PATTERNS; RECOVERY}},
Research-Areas = {{Fisheries}},
Web-of-Science-Categories = {{Fisheries}},
Author-Email = {{richard.nash@imr.no
Mark.dickeycollas@wur.nl
laurence.kell@cefas.co.uk}},
ResearcherID-Numbers = {{Dickey-Collas, Mark/A-8036-2008}},
Funding-Acknowledgement = {{EU UNCOVER project {[}022717]; RDMN through the IMR, Bergen; North Sea
Programme; LTK through the UKs Department for Food, Environment and
Rural Affairs {[}MF1201]}},
Funding-Text = {{The authors are grateful to the General Secretary of ICES and the ICES
Herring Assessment Working Group (HAWG) for making the population data
available. Sascha Fassler (University of St Andrews) is thanked for
providing the larval herring production time series. The authors were
partially supported by the EU UNCOVER project (Contract Number: 022717),
RDMN through the IMR, Bergen, North Sea Programme and LTK through the
UKs Department for Food, Environment and Rural Affairs (under contract
MF1201).}},
Number-of-Cited-References = {{55}},
Times-Cited = {{32}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{13}},
Journal-ISO = {{Fish Res.}},
Doc-Delivery-Number = {{391BG}},
Unique-ID = {{ISI:000262206900010}},
OA = {{No}},
DA = {{2017-08-17}},
}
Downloads: 1
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