dc.contributor.author | Waples, Robin S. | |
dc.contributor.author | Hard, Jeffrey J. | |
dc.contributor.author | Hindar, Kjetil | |
dc.contributor.author | Karlsson, Sten | |
dc.date.accessioned | 2016-12-14T10:19:13Z | |
dc.date.available | 2016-12-14T10:19:13Z | |
dc.date.created | 2016-12-07T10:14:30Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Current Zoology 2016 (052016), 1-11. | nb_NO |
dc.identifier.issn | 1674-5507 | |
dc.identifier.uri | http://hdl.handle.net/11250/2425095 | |
dc.description.abstract | The Ryman–Laikre (R-L) effect is an increase in inbreeding and a reduction in total effective population
size (NeT) in a combined captive–wild system, which arises when a few captive parents produce
large numbers of offspring. To facilitate evaluation of the R-L effect for scenarios that are relevant to
marine stock enhancement and aquaculture, we extended the original R-L formula to explicitly account
for several key factors that determine NeT, including the numbers of captive and wild adults,
the ratio of captive to wild Ne/N (b), productivity of captive and wild breeders, and removal of individuals
from the wild for captive breeding. We show how to provide quantitative answers to questions
such as: What scenarios lead to no loss of effective size? What is the maximum effective size that can
be achieved? and What scenarios insure that NeT will be no smaller than a specified value? Important
results include the following: (1) For large marine populations, the value of b becomes increasingly
important as the captive contribution increases. Captive propagation will sharply reduce NeT unless
the captive contribution is very small or b is very large ( 103 or higher). (2) Very large values of b are
only possible if wild Ne/N is tiny. Therefore, large wild populations undergoing captive enhancement
at even modest levels will suffer major reductions in effective size unless wild Ne is a tiny fraction of
the census size (about 10 4 or lower). | nb_NO |
dc.language.iso | eng | nb_NO |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.subject | captive breeding | nb_NO |
dc.subject | effective population size | nb_NO |
dc.subject | inbreeding | nb_NO |
dc.subject | genetic drift | nb_NO |
dc.title | Evaluating the Ryman–Laikre effect for marine stock enhancement and aquaculture | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.source.pagenumber | 1-11 | nb_NO |
dc.source.journal | Current Zoology | nb_NO |
dc.source.issue | 052016 | nb_NO |
dc.identifier.doi | 10.1093/cz/zow060 | |
dc.identifier.cristin | 1409329 | |
dc.relation.project | Norwegian Environment Agency | nb_NO |
cristin.unitcode | 7511,3,0,0 | |
cristin.unitname | Avdeling for akvatisk økologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |