Recent Stories with tag seaglider

The New York Times seems delighted to dispel any remaining myths about the untouched natural beauty of Washington state. Just this week readers have learned that there's three times the amount of plutonium waste at Hanford as "thought," and that the Puget Sound's pH level is declining in part due to ocean acidification and the water is growing more corrosive. (Thanks. We'll be expecting a make-up "36 Hours in Seattle," soon.)

The Seattle Times goes straight to the pH-decline bottom line: the impact on the Puget Sound shellfish industry.

The Taylor Shellfish hatchery on Hood Canal's Dabob Bay had its first good year in several in 2009, but company spokesman Bill Dewey said he suspects that's merely because the winds cooperated, preventing acidified seawater from entering the relatively stable bay.

The company recently installed sophisticated pH monitors at its hatchery to determine when it's best to draw water off the surface, from way down deep—or not at all.

In an earlier story, from January this year, the Seattle Times looked at the cause-and-effects of ocean acidification in general. The world's oceans act as a carbon dioxide sink, claiming excess CO2 from the atmosphere, but CO2 dissolved in water creates a weak acid solution. It turns out that shellfish larvae, for one, are very sensitive to changes in pH.

The new study on the Puget Sound's ocean-acidification intake represents the work of researchers with NOAA, the University of Washington, and the state's Department of Ecology. (It's published in the latest issue of Estuarine, Coastal and Shelf Science.) The researchers make it clear that the Sound is struggling mightily with the human activity around it--the toxic pollution and "nutrient-rich" flows that are channeled into it, both killing off life and promoting algae blooms that...also kill off life.... (more)