The annual dolphin count takes place today in Ocean City from 8 a.m. to 11 a.m. Volunteers can join staff from the National Aquarium's Animal Rescue team at Assateague State Park Day Use Area (6915 Stephen Decatur Highway, Berlin); or at the beach on 40th Street, 81st Street or 130th Street. Last year, participants reported 113 sightings of Atlantic bottle nose dolphins off the coast of Ocean City. That number was a significantly higher than the 31 dolphins seen in 2012. There were 107 sightings in 2011, an amount that is considered relatively normal. Annual counts like Ocean City's provide marine mammal experts with snapshots of dolphin populations, as well as indications of reproduction rates and food abundance.