Science on Tap, How Our local Ocean is Changing: Acidification and Dead Zones. This will be the subject of a discussion to be held at Chetco Brewing Company on December 11 at 6 P.M. The discussion will focus on how warm ocean water brought Tuna and even Dorado off our coast this fall. But this may be bad news for the salmon. From more acidic ocean water to low oxygen levels leading to dead zones, things are getting weird. Join marine biologist Bill Gorham to look at some of the causes of the changes and to share stories about how you’ve seen things change here over the years.