He received a horizontal promotion to a different department, retaining his old salary and title. 9. Economics. of or relating to companies, affiliates, divisions, etc., that perform the same or similar functions or produce the same or similar products: Through horizontal mergers the company monopolized its field.
Fresh live lobsters can stay in your refrigerator one to two days. Keep them in the back, where the refrigerator is coldest. They must be kept alive until you cook them.
According to the Clemson University Extension article Safe Handling of Seafood cooked shrimp stays good in the refrigerator for 3-4 days.