The effect of algal symbionts on the accuracy of Sr/Ca paleotemperatures from coral.

@article{Cohen2002TheEO,
  title={The effect of algal symbionts on the accuracy of Sr/Ca paleotemperatures from coral.},
  author={Anne L. Cohen and Kathryn E Owens and Graham D Layne and Nobumichi Shimizu},
  journal={Science},
  year={2002},
  volume={296 5566},
  pages={331-3}
}
The strontium-to-calcium ratio (Sr/Ca) of reef coral skeleton is commonly used as a paleothermometer to estimate sea surface temperatures (SSTs) at crucial times in Earth's climate history. However, these estimates are disputed, because uptake of Sr into coral skeleton is thought to be affected by algal symbionts (zooxanthellae) living in the host tissue. Here, we show that significant distortion of the Sr/Ca temperature record in coral skeleton occurs in the presence of algal symbionts… CONTINUE READING
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