Sclerochronological records of environmental variability and bivalve growth in the Pacific Arctic

Reynolds, David J.; Biela, Vanessa R. von; Dunton, Kenneth H.; Douglas, David C.; Black, Bryan A.

doi:10.1016/j.pocean.2022.102864

Cited by 3 publications

(2 citation statements)

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“…Astarte borealis (Schumacher, 1817) is a common constituent of many Arctic and boreal seas, and individuals are reported to live for several decades (Moss et al, 2018;Moss et al, 2021) to over a century (Torres et al, 2011;Reynolds et al, 2022). Such long lifespans are not uncommon for high-latitude species.…”

Section: Introductionmentioning

confidence: 99%

Seasonal SIMS δ18O record in Astarte borealis from the Baltic Sea tracks a modern regime shift in the NAO

Hughes,

Surge,

Orland

et al. 2023

Front. Mar. Sci.

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IntroductionAstarte borealis holds great potential as an archive of seasonal paleoclimate, especially due to its long lifespan (several decades to more than a century) and ubiquitous distribution across high northern latitudes. Furthermore, recent work demonstrates that the isotope geochemistry of the aragonite shell is a faithful proxy of environmental conditions. However, the exceedingly slow growth rates of A. borealis in some locations (<0.2mm/year) make it difficult to achieve seasonal resolution using standard micromilling techniques for conventional stable isotope analysis. Moreover, oxygen isotope (δ18O) records from species inhabiting brackish environments are notoriously difficult to use as paleoclimate archives because of the simultaneous variation in temperature and δ18Owater values.MethodsHere we use secondary ion mass spectrometry (SIMS) to microsample an A. borealis specimen from the southern Baltic Sea, yielding 451 SIMS δ18Oshell values at sub-monthly resolution.ResultsSIMS δ18Oshell values exhibit a quasi-sinusoidal pattern with 24 local maxima and minima coinciding with 24 annual growth increments between March 1977 and the month before specimen collection in May 2001.DiscussionAge-modeled SIMS δ18Oshell values correlate significantly with both in situ temperature measured from shipborne CTD casts (r2 = 0.52, p<0.001) and sea surface temperature from the ORAS5-SST global reanalysis product for the Baltic Sea region (r2 = 0.42, p<0.001). We observe the strongest correlation between SIMS δ18Oshell values and salinity when both datasets are run through a 36-month LOWESS function (r2 = 0.71, p < 0.001). Similarly, we find that LOWESS-smoothed SIMS δ18Oshell values exhibit a moderate correlation with the LOWESS-smoothed North Atlantic Oscillation (NAO) Index (r2 = 0.46, p<0.001). Change point analysis supports that SIMS δ18Oshell values capture a well-documented regime shift in the NAO circa 1989. We hypothesize that the correlation between the SIMS δ18Oshell time series and the NAO is enhanced by the latter’s influence on the regional covariance of water temperature and δ18Owater values on interannual and longer timescales in the Baltic Sea. These results showcase the potential for SIMS δ18Oshell values in A. borealis shells to provide robust paleoclimate information regarding hydroclimate variability from seasonal to decadal timescales.

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Section: Introductionmentioning

confidence: 99%

Seasonal SIMS δ18O record in Astarte borealis from the Baltic Sea tracks a modern regime shift in the NAO

Hughes,

Surge,

Orland

et al. 2023

Front. Mar. Sci.

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“…Additionally, the S-MAB has been rapidly warming since 1950. This result is important because the data are derived from the master shell growth chronology (not just a shell growth series) with an EPS greater than 0.85 Reynolds et al, 2022;Wigley et al, 1984), and perhaps more convincing based on the comparison with the CMV Oleander instrumental data.…”

Section: Oceanographic Variability Of the Southern Mid-atlantic Bight...mentioning

confidence: 85%

Using clam-based stable isotopes and growth histories to reconstruct the temporal oceanographic variability in the southern Mid-Atlantic Bight over the last 185 years

Sun

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The temperature of the coastal ocean in the southern Mid-Atlantic Bight (S-MAB) region has increased by approximately 1.3 C in the last century based on instrumental measures. This warming trend is consistent with warming in the northwestern Atlantic region, which has some of the largest and fastest warming in the North Atlantic. The S-MAB is essential for several important fisheries and other ocean-based industries, and it is currently facing increased environmental stress. Because of the limited spatial and temporal hydrographic instrumental

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Developing a sclerochronology network in the Adriatic Sea: Growth synchrony among populations of Callista chione

Uvanović

Peharda

Pavin

et al. 2023

Regional Studies in Marine Science

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Sclerochronological records of environmental variability and bivalve growth in the Pacific Arctic

Cited by 3 publications

References 84 publications

Seasonal SIMS δ18O record in Astarte borealis from the Baltic Sea tracks a modern regime shift in the NAO

Seasonal SIMS δ18O record in Astarte borealis from the Baltic Sea tracks a modern regime shift in the NAO

Using clam-based stable isotopes and growth histories to reconstruct the temporal oceanographic variability in the southern Mid-Atlantic Bight over the last 185 years

Developing a sclerochronology network in the Adriatic Sea: Growth synchrony among populations of Callista chione

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