Press of Atlantic City: Scientists with the U.S. Geological Survey have implicated climate change in a decline in horseshoe crab populations in the Delaware Bay and other spots along the East Coast. In recent years, fishermen have been blamed for the decline, leading to a complete horseshoe crab harvest moratorium in New Jersey beginning in 2008 and cutbacks in other states. Commercial harvesting may have had short-term effects, but USGS conservation geneticist Tim King said his study shows the …