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Multidecadal signals within co-occurring intertidal barnacles Semibalanus balanoides and Chthamalus spp. linked to the Atlantic Multidecadal Oscillation

TitoloMultidecadal signals within co-occurring intertidal barnacles Semibalanus balanoides and Chthamalus spp. linked to the Atlantic Multidecadal Oscillation
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2014
AutoriMieszkowska, N., Burrows M.T., Pannacciulli Federica, and Hawkins S.J.
RivistaJournal of Marine Systems
Volume133
Paginazione70-76
ISSN09247963
Parole chiaveAMO, Aquatic ecosystems, Atlantic Multidecadal Oscillation, Atlantic multidecadal oscillations, Atlantic Ocean, Atmospheric pressure, bivalve, Chthamalidae, Chthamalus, climate, coexistence, Devon, England, intertidal environment, North Atlantic oscillations, Oceanography, Population dynamics, rocky shore, sea surface temperature, Sea surface temperature (SST), Semibalanus balanoides, signal, Temperature variability, Thoracica, Time series, Time series analysis, United kingdom
Abstract

Few links have been established between the Atlantic Multidecadal Oscillation and long-term dynamics of marine systems due to the scarcity of sustained biological time-series with sufficient multi-decadal coverage. The abundances of co-occurring boreal and Lusitanian species of barnacle have been recorded annually at a rocky shore in Devon, southwest England since 1953. Multidecadal cycles in relative abundances of the cold-water Semibalanus balanoides and warm-water Chthamalus spp. are strongly correlated with both local sea surface temperatures, and a 'Warm Index' of barnacle abundance shows strong links to the basin-scale Atlantic Multidecadal Oscillation. In contrast there are weak or no observed relationships with the North Atlantic Oscillation for either species. The shorter lifecycle of S. balanoides compared to the chthamalids and the increase in spring and summer temperatures to which newly settled S. balanoides recruits have been exposed during the last decade are likely mechanisms by which barnacle densities are responding to low-frequency temperature variability expressed in the Atlantic Multidecadal Oscillation. © 2013 Elsevier B.V.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84897037456&doi=10.1016%2fj.jmarsys.2012.11.008&partnerID=40&md5=4db5293631271cceb2c4f2e7ef40a3ac
DOI10.1016/j.jmarsys.2012.11.008
Citation KeyMieszkowska201470