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Fishing for Data

David Neils of the New Hampshire Department of Environmental Services (DES), right, measures and releases a smallmouth bass as his DES colleague Andy Chapman, left, records the information on the Connecticut River in Lebanon, N.H., on July 30, 2013. Neils and Chapman were working with Hilary Snook of the Environmental Protection Agency, second from right, and EPA volunteer intern Zach Thompson to catch fish by stunning them with electricity and gather data for the National Rivers and Streams Assessment. (Valley News – James M. Patterson)

David Neils of the New Hampshire Department of Environmental Services (DES), right, measures and releases a smallmouth bass as his DES colleague Andy Chapman, left, records the information on the Connecticut River in Lebanon, N.H., on July 30, 2013. Neils and Chapman were working with Hilary Snook of the Environmental Protection Agency, second from right, and EPA volunteer intern Zach Thompson to catch fish by stunning them with electricity and gather data for the National Rivers and Streams Assessment. (Valley News – James M. Patterson) Purchase photo reprints »

David Neils, right, of the New Hampshire Department of Environmental Services measures and releases a smallmouth bass as his colleague Andy Chapman, left, records the information on the Connecticut River in Lebanon Tuesday. Neils and Chapman were working with Hilary Snook of the Environmental Protection Agency, top, and EPA volunteer intern Zach Thompson to gather data for the National Rivers and Streams Assessment. The men captured the fish using electroshock, the effects of which are temporary. Valley News – James M. Patterson