Comparison of Mediterranean Pteropod Shell Biometrics and Ultrastructure from Historical (1910 and 1921) and Present Day (2012) Samples Provides Baseline for Monitoring Effects of Global Change.

PLoS One · 2017 · PMC5268398 · PMID 28125590

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a decreasing trendno p-value reported

The hind cast shows a decreasing trend in pH at all sites with a mean decrease of 0.1 and 0.08 pH T units at site 1 and 2, respectively, since the start of the 20 th century ( Fig 4A ).

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