Number of top shells Number of shore crabs Number of edible crabs 16 4 2 10 7 3 5 9 1 18 6 2 26 3 2 18 4 2 24 3 1 20 4 0 32 1 1 15 6 1 11 7 2 14 5 2 19 4 3 15 5 4 8 6 2 29 3 2 27 2 1 16 4 2 30 1 3 22 4 2