The below paragraph is from a website I came across recently. Could anyone explain to me what the author means by "occurred in the sound' in the below paragraph?
Because the birds apparently died of starvation, logic follows that the birds were unable to find appropriate food. For these birds, that would be ocean herring and other fish whose populations are known to be in decline. It’s worth noting that herring numbers in particular have been low since the 1983 Exxon Valdez oil spill, which occurred in the sound.