| tracing mississippi river influences in estuarine food webs of coastal louisiana. | the breton sound estuary in southern louisiana receives large amounts of mississippi river water via a controlled diversion structure at the upstream end of the estuary. we used stable isotopes to trace spatial and seasonal responses of the downstream food web to winter and spring introductions of river water. analysis of delta13c, delta15n, and delta34s in the common local consumers such as grass shrimp (palaemonetes sp.), barnacles (balanus sp.), and small plankton-feeding fish (bay anchovies, ... | 2005 | 16041544 |