Following quickly on the heels of last week’s announcement that Aujourd’hui at Four Seasons Boston will be closing at the end of June, Kenmore Square’s seafood specialist, Great Bay is the most recent casualty of the current economic climate. Also expected to be serving their last meal sometime soon: South End stalwart, Icarus, which has already been sold, though there’s no official word on the closing date. Pay your final respects or use up any gift certificates you’ve got lying around asap. Call the restaurants directly for more information.