You are here:
Contribution of Allochthonous Carbon to American Shad Production in the Mattaponi River, Virginia, Using Stable Isotopes
Citation:
HOFFMAN, J., D. A. BRONK, AND J. E. OLNEY. Contribution of Allochthonous Carbon to American Shad Production in the Mattaponi River, Virginia, Using Stable Isotopes. Estuaries and Coasts. Estuarine Research Federation, Port Republic, MD, 30(6):1034-1048, (2007).
Impact/Purpose:
to quantify the contribution of phytoplankton and organic matter to the production of American shad
Description:
Our objective was to quantify the contribution of autochthonous, locally-produced phytoplankton, and allochthonous, terrestrial-derived organic matter (OM) to the production of young-of-year (YOY) American shad using stable isotopes...The results suggest an important link between river discharge, energy flow, and recruitment, wherein high discharge favors reliance on terrestrial carbon by YOY American shad, owing to changes in zooplankton diet, macroinvertebrate abundance, or both, and also favors high American shad abundance.