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dc.contributor.authorAprahamian, MW
dc.contributor.authorAprahamian, CD
dc.contributor.authorKnights, Antony
dc.date.accessioned2018-08-13T12:39:40Z
dc.date.available2018-08-13T12:39:40Z
dc.date.issued2010-11
dc.identifier.issn0022-1112
dc.identifier.issn1095-8649
dc.identifier.urihttp://hdl.handle.net/10026.1/12046
dc.description.abstract

<jats:p>A stock–recruitment model with a temperature component was used to estimate the effect of an increase in temperature predicted by climate change projections on population persistence and distribution of twaite shad <jats:italic>Alosa fallax</jats:italic>. An increase of 1 and 2° C above the current mean summer (June to August) water temperature of 17·8° C was estimated to result in a three and six‐fold increase in the population, respectively. Climate change is also predicted to result in an earlier commencement to their spawning migration into fresh water. The model was expanded to investigate the effect of any additional mortality that might arise from a tidal power barrage across the Severn Estuary. Turbine mortality was separated into two components: (1) juvenile (pre‐maturation) on their out migration during their first year and on their first return to the river to spawn and (2) post‐maturation mortality on adults on the repeat spawning component of the population. Under current conditions, decreasing pre‐maturation and post‐maturation survival by 8% is estimated to result in the stock becoming extinct. It is estimated that an increase in mean summer water temperature of 1° C would mean that survival pre and post‐maturation would need to be reduced by <jats:italic>c</jats:italic>. 10% before the stock becomes extinct. Therefore, climate change is likely to be beneficial to populations of <jats:italic>A. fallax</jats:italic> within U.K. rivers, increasing survival and thus, population persistence.</jats:p>

dc.format.extent1912-1930
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoeng
dc.publisherWiley
dc.subjectimpact assessment
dc.subjectstock and recruitment
dc.subjecttemperature
dc.titleClimate change and the green energy paradox: the consequences for twaite shad <i>Alosa fallax</i> from the River Severn, U.K.
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000284321600012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue8
plymouth.volume77
plymouth.publication-statusPublished
plymouth.journalJournal of Fish Biology
dc.identifier.doi10.1111/j.1095-8649.2010.02775.x
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dc.publisher.placeEngland
dc.identifier.eissn1095-8649
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1111/j.1095-8649.2010.02775.x
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


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