TY - RPRT TI - Molecular and isotopic tracers used to examine sources of organic matter and its incorporation into the food webs of San Francisco Bay AU - Elizabeth A. Canuel AU - James E. Cloern AU - David B. Ringelberg AU - James B. Guckert AU - Greg H. Rau PY - 2003 DO - 10.4319/lo.1995.40.1.0067 UR - https://pubs.usgs.gov/publication/70157137 ID - 70157137 ER -