The Influence of Depth-Dependent Seasonal Temperature Variability on Growth Signal in Arctica islandica

Bivalve sclerochronological records with annually resolved growth bands are applicable proxies in reconstructing features of the hydro-climate system. Here we evaluate relationship between indices A. islandica , previously collected at approximately 82 m depth North Atlantic, and seasonal subsurface temperature various depths for 1900–2005 period. Correlations sea surface collection site not significant during winter weak remaining seasons. The strongest in-phase correlations persist summer autumn below 56 water depth, whereas weaker lagged by one or two years. We also observe similarities distant bodies Atlantic sector, a corresponding large-scale oceanographic pattern that increases significantly along trajectory Current. suggest investigating signal locally reliability application bivalve shells as marine archives.