sentences:  In 1993, the combined harvest of the blue crabs was valued at around US$100 million.Over the years the population of the blue crab has dropped, and the amount captured has fallen from over in 1993 to in 2008.In the Chesapeake Bay, the population fell from 900 million to around 300 million, and capture fell from in the mid 1990s to in 2004, with revenue falling from $72 million to $61 million.