I think "1bn" it makes for an attention getting but not an especially useful headline. It seems like the real story is that mussels can't survive more than a f

I think "1bn" it makes for an attention getting but not an especially useful headline. It seems like the real story is that mussels can't survive more than a few hours at 40 degrees and died en masse. This has many ripple effects in the ecosystem. - mussels are a primary food source for many species, like sea stars - their shells are used as habitats by hermit crabs and other crustaceans and worms - they help filter the water and keep it clear. - low oxygen in the water as they decompose This isn't a longitudinal study, 1bn is just back of napkin math, but it sounds like it is fair to assume that there will be dramatically reduced biodiversity and biomass in the area for years to come. And if another such anomalous temperature event takes place in the next few years it will compound the issue.