Along our nation’s coastlines where fresh water washes into the tidal rhythm of the sea, shellfish are declining, along with many other forms of marine life. Today we’re out on New Hampshire’s Great Bay Estuary with Richard Langan to better understand why. Professor Langan directs the Jackson Estuarine Laboratory at the University of New Hampshire, and runs a technology research program for the nation’s 21 federally chartered Estuarine Research Reserves. Today we begin our series taking a closer look estuaries over this fall. Professor Langan has brought us out in a converted lobster boat to see the abundance of life that a relatively healthy estuary can support: