One may compare these scenarios to the known requirements of the species or associated suite of species and determine a functional threshold for the subwatershed. If a reliable period of record exists for additional parameters, one may attempt to correlate trends between seasonal population fluxes and the environmental gradients. Comparing the trends in the subwatershed to the proposed prescriptions may show complementary restoration efforts. As studies are completed that link ecological condition to species use, the results should be reviewed at several organizational levels. Target scales Clearly anadramous fish are a key component to watershed and subwatershed interactions.
Most agencies have several years of data and local expertise relating to the managed resource.
The approach outlined here is put forth as a set of standards for spatial data and methods. Repeatable measures across the Columbia River Basin are essential for long term monitoring and evaluation. Jim Webster, hydrologist with the Confederated Tribes of the Umatilla Indian Reservation, provided meaningful insight into the development of the hydrologic response units. What is outlined here is the general path of the Umatilla Tribes future work plan, to support fish and wildlife monitoring and evaluation.