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2019-08-08. Oysters in peril as warming climate alters the water in their habitats.

posted Aug 9, 2019, 6:39 AM by Alan Gould
By Peter Fimrite, San Francisco Chronicle. [https://www.sfchronicle.com/environment/article/Oysters-in-peril-as-warming-climate-alters-the-14288818.php] For GSS Climate Change chapter 8. Excerpt: Human-caused climate change is increasingly harming oysters in Tomales and San Francisco bays and could soon devastate shellfish across California, as the chemistry of the water in estuaries morphs and livable habitat shrinks, a UC Davis study has found. Even moderate changes in water temperature, acidity and dissolved oxygen make it harder for native and commercial oysters to grow their calcium-based shells, a situation that does not bode well for the future, concluded the paper published this week in the journal Limnology and Oceanography. It means the severe climatic changes predicted as the Earth warms over the next few decades could dramatically shrink the habitat for both farmed oysters and the native species that scientists have been trying desperately to restore, said Ted Grosholz, a professor of environmental science who led the study with funding from a California Sea Grant....